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ISRO | ISRO CS 2018 | Question 44

A language with string manipulation facilities uses the following operations. 

head(s)- returns the first character of the string s 
tail(s)- returns all but the first character of the string s 
concat(sl, s2)- concatenates string s1 with s2. 

The output of concat(head(s), head(tail(tail(s)))), where s is acbc is
 

(A)

ab
 

(B)

ba
 

(C)

ac
 

(D)

as
 

Answer

Please comment below if you find anything wrong in the above post
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