Given:
Thesis about question is given
Required:
To select which option is correct
Explanation:
assumption S1 is the distance to the grocery store
assumption S2 is the distance to the south post office
assumption S3 is the distance to the north bank
assumption S is the total distance
according to the question
S1= 10 miles S2=6 miles S3=8 miles
S=S1+S2+S3=10+6+8=24 miles
Required answer:
option D