Which of the following options must be positive, given 2 negative integers e and f? Choose the most appropriate option:
A) ef  B) e/f  C) (e + f)^3  D) B and C  E) A and B above
A.ef   -ve*-ve= +ve   will be positive   B. e/f   -ve/-ve=+ve   will be positive   C. (e + f)^3=-ve   D. (e + f)^5   = -ve   E. A and B option are positive so both are correct   Answer A and B above
<result>E</result>
Which of the following options must be positive, given 2 negative integers e and f?