Consider the regular expressions: R$1=($a $|$ b $)*(0*1*)($ a $|$ b $)*$ R$2=($a $|$ b $)(0*1*)*($ a $|$ b $)$ R$3=01($R$2*)$ Which of the following is true? A$.$ aa in L$($R$1)$ and $0101$ in L$($R$3)$ B$.$ abab$0101$ in L$($R$1)$ and ab$0101$a in L$($R$2)$ C$.$ a$000111$abab in L$($R$1)$ and a$01100110$a in L$($R$2)$ D$.$a$010101$a in L$($R$1)$ and a$010101$a in L$($R$2)$