"The Proposed Developer Employed Only Certified Programmers

Multiple Choice

"The proposed developer employed only certified programmers. Over the past five years, they have redesigned more than 50 databases for local businesses. They will add innovative new functionality to our system, while increasing the efficiency of our current system's capabilities." Which of the following options best improves the section of Dave's text excerpted above?

A) replacing "employed" in the first sentence with "used to employ"
B) replacing "employed" in the first sentence with "employs"
C) replacing "have redesigned" in the second sentence with "will redesign"
D) replacing "will add" in the third sentence with "can add"
E) replacing "will add" in the third sentence with "would add"