9. The Pashtun people are the largest tribal group exhibiting segmentary lineage in the world, and though they say there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes are migratory and are not counted in the census.

A. and though they say there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes
B. and though there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes
C. and though they are saying that there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes
D. they say there are supposedly 40 million Pashtun, but it is impossible to figure out the exact number since the tribes
E. there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes

The Pashtun people are the largest tribal group exhibiting segmentary lineage in the world, and though they say there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes are migratory and are not counted in the census.

Grammar issue presented: pronoun ambiguity and redundancy: they say —who are "they?" In any case, they say is redundant, because supposedly means more or less the same thing.

1. and though they say there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes
   Pronoun ambiguity and redundancy: they say
   Clear? NO
   
   
2. and thoughthere are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes
   Pronoun ambiguity: NO: there are
   Clear? YES
   
   
3. and though they are saying that there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes
   Pronoun ambiguity and redundancy: they are saying
   Clear? NO
   
   
4. they say there are supposedly 40 million Pashtun, but it is impossible to figure out the exact number since the tribes
   Pronoun ambiguity and redundancy: they say
   Clear? NO
   
   
5. there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes
   Pronoun ambiguity: NO: there are
   Clear? YES
   
   Additional errors: Comma splice: A comma-spliced sentence has punctuation but no coordinating conjunction: The Pashtun people are the largest tribal group exhibiting segmentary lineage in the world, there are supposedly 40 million Pashtun, it is impossible to figure out the exact number since the tribes are migratory and are not counted in the census.

Q.8 Medium

Q.10 Medium