Cho tam giác ABC = tam giác DEF. Biết góc A + góc B = 140 độ

A. $\widehat{A}=\widehat{D}={105}^o,\widehat{F}=\widehat{C}={40}^o$

B. $\widehat{A}=\widehat{D}={90}^o,\widehat{F}=\widehat{C}={50}^o$

C. $\widehat{A}=\widehat{D}={95}^o,\widehat{F}=\widehat{C}={40}^o$

D. $\widehat{A}=\widehat{D}={40}^o,\widehat{F}=\widehat{C}={95}^o$