Answer: hello the complete question is attached below 
answer:
A) Group symbol = SW 
B) Group name = well graded sand , fine to coarse sand 
C) It is not a clean sand given that ≤ 50% particles are retained on No 200 
Explanation:
<u>A) Classifying the soil according to USCS system</u>
  ( using 2nd image attached below )
<em>description of sand</em> :
The soil is a coarse sand since  ≤ 50% particles are retained on No 200 sieve, also 
The soil is a sand given that more than 50% particles passed from No 4 sieve
The soil can be a clean sand given that fines ≤ 12% 
The soil can be said to be a well graded sand because the percentage of particles passing through decreases gradually over time
Group symbol as per the 2nd image attached below = SW 
B) Group name = well graded sand , fine to coarse sand 
C) It is not a clean sand given that ≤ 50% particles are retained on No 200