If `m ,\ n ,\ o,\ p\ a n d\ q` are integers, then `m\ (n\ +o)\ (p-q)` must be even when which of the following is even? `m` (b) `p` (c) `m\ +\ n` (d) `n\ +\ p`

Four persons M, N, O and P are playing cards. M is on the right of N and P is on the left of O. Then which of the following are partners ?

m n o n o p q o p q r s------

If a is any real number and m;n are positive integers; then (a^p)^q = a^(pq) = (a^q)^p

If a is any real number and m;n are positive integers; then a^(p)xx a^(q)=a^(p+q)

If m,n,p,q are consecutive integers then the value of i^(m)+i^(n)+i^(p)+i^(q) is

If a is any real number and m;n are positive integers; then (a^(p))/(a^(q))=a^(p-q)

Among M, N, O, P and Q, (i) N is taller than only P and (ii) O is the 2nd tallest person. To decide the tallest among them, the data in which of the following statements is (are) sufficient ? (A) M is taller than N (B) M, though taller than N, is not as tall as Q (C) Q is taller than N (D) O is taller than both M and N 1) Only (D) 2) Either (B) alone or (D) alone 3) Only (B) or only (A) and (C) together 4) (B) and (D) together 5) None of these