When is the move constructor invoked for some Animal class?

Choice $1$ of $4$:dog $=$ std::move$($beagle$)$;

Choice $2$ of $4$:std::move$($Animal dog$("$Snoopy$"))$;

Choice $3$ of $4$:None of the above

Choice $4$ of $4$:Animal std::move$($dog$)$;