What are the set of functions that are to be executed to get the following output?cata) push(c, s); push(a, s); push(t, s); pop(s); pop(s); pop(s);b) push(c,s); pop(s); push(a,s); pop(s);push(t,s);pop(s);c) pop(c ); pop(

• A. push(c, s); push(a, s); push(t, s); pop(s); pop(s); pop(s);
• B. push(c,s); pop(s); push(a,s); pop(s);push(t,s);pop(s);
• C. pop(c ); pop(a); pop(t);
• D. push(c,s); push(a,s); pop(t);