The expression 𝑎3+ 𝑏3 is equivalent to?

A. (𝒂+𝒃)𝟑-3ab (a+b)

B. (𝑎+𝑏)3-ab (a+b)

C. (𝑎+𝑏)3-3ab (a-b)

D. (a+b)(a-b)(a-b)