E r-1 1. e+x -dx = (a) log(e +r) (b) e in (e" +x) (c) log(e +x') (d) none of these e

if constant term is 0 then option c is correct otherwise option d is correct its depends upon type of question that it is m.c.q type or m.s.q type

since no constant is used in the option , so only option "c" is correct in any type of question