Aviv and Marco were trying to describe the parts of the expression 5a/2a+3.
- Aviv said, "The entire expression is the quotient of 5a and 2a+3"
- Marco said, "On it's own, 2a+3 is a sum with 2 terms."

Who is correct?
Choose one answer:
A: Only Aviv
B: Only Marco
C: Neither student is correct
D: Both students are correct