Multiple choices quizz on R programming language

A programmer wants to store three vectors in a data structure with name Y$.$ The vectors are A$1=$c$(1,2,3),$ B$2=$c$("$a$","$e$","$i$")$ and C$3=$c$($T$,$F$,$T$).$ Which of the following data structures can be used and why?

A$.$ A list

B$.$ A data frame

C$.$ None of the above as A$1,$ B$2$ and C$3$ are vectors

D$.$ A matrix coerced from a character string

E$.$ A matrix with embedded lists