The correct option is D 15pq+(m−n)
Step 1:––––––––
First, we would evaluate the product of p and q. this can be shown as:
p×q=pq
Now, we would multiply the product of p and 1 by the fraction 15 in order to get the one-fifth of the product of p and q. This can be shown as:
15×(pq)=15pq
Step 2:––––––––
We would subtract n from m in order to get the difference of m and n. This can be shown as:
m−n
Step 3:––––––––
We would now add one-fifth of the product of p and q to the difference of m and n. This can be shown as:
15pq+(m−n)
Therefore, option (d.) is the correct answer.