Question: Identify from the list below the ( extended ) regular expression that generates all and only the strings over alphabet { 0 , 1 }

Identify from the list below the (extended) regular expression that generates all and only the strings over alphabet {0,1} that end in 1. For one of the expressions that you did not select, explain why it is not correct.
a.(0**1)*
b.(0**1**)+1
c.(0**1+)+
d.(0+1)**10*
e.(0+1)+1
Description of incorrect expression:
Identify from the list below the ( extended )

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