Answer:
Option A is correct
The sum of two products, there are two terms
Explanation:
Terms states that it can be a number , variable or a constant term multiplied by a variable terms.
Given the expression:

here, x and y are variables terms.
There are two terms i.,e 7x and 2y
7x means Product of 7 and x
2y means Product of 2 and y.
and
7x + 5y means Sum of two products
therefore, the given expression 7x+2y best describe is: the sum of two products, there are two terms