Additive property of order of real number is for all a,b,c,d belong to R

• A. A > b ? c > d this imply a + c = b + d
• B. A > b ? c > d this imply a + c < b + d
• C. A > b ? c > d this imply a + d > b + d
• D. A > b ? c > d this imply c > b + d