If a and b are negative and positive integers respectively,which of the following options must be positive?	Choices:
A) ab B) a/b C) 2a/b D) 4a/b E) (a + b)^2
A. np   -ve*+ve=-ve   will be negative   B. n/p   -ve/+ve=-ve   C.2a/b   -ve/+ve=-ve   D.4a/b   -ve/+ve=-ve   (a + b)^2.(a + b)^2   will be positive irrespective of the absolute values of x and y   will be positive always
<result>E</result>
If a and b are negative and positive integers respectively,which of the following options must be positive?