State the additional property of inequalities for sums.

A From a < b it follows that a + c < b + c for every real c

B From a < b it follows that a + c ≤ b + c only if c ≥ 0

C From a < b it follows that a + c > b + c if c < 0

D From a < b it follows that a − c < b − c only if c > 0

Correct Answer: Option A