Will 2/5+√3 be rational or irrational? Why?

A. The answer would be rational. An irrational number plus an irrational number is always rational.

B. The answer would be irrational. A rational number plus arational number is always irrational.

C. The answer would be rational. A rational number plus an irrational number is always rational.

D. The answer would be irrational. A rational number plus an irrational number is always irrational.