Step-by-step explanation:
try the option shown in the attachment, note, all the answers are marked with red colour.
I would say B.
Hope this helped!
:)
Answer:
Step-by-step explanation:

Auxialary equation is

General solution is



Eliminate B to get
3A =a-1
We know that y tends to 0 when x tends to infinity for any finite A
i.e. a should be a finite real number.