若多项式x⁵+x¹⁰=a₀+a₁（x+1）+a₂（x+1）²+…+a₉（x+1）⁹+a₁₀（x+1）¹⁰，则a₄=（　　）

A．205

B．210

C．-205

D．-210

Peter didn't want to go to the cinema but they begged so hard that he _____ and went with them. [ ]

A. gave in

B. gave off

C. gave out

D. gave up