If x=5–√+3–√5–√−3–√ andy=5–√−3–√5–√+3–√ then(x+y)equals ?If x=5+35−3 andy=5−35+3 then(x+y)equals ?

• A. 8
• B. 16
• C. 2√15
• D. 2(√5 + √3)