In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - aa _ aaa _ aaaa _ aaaa _ b

D. BBBA

Which term comes next in the series : YEB, WFD, UHG, SKI ?

A. QOL

In alphabet series, some alphabets are missing which are given in that order as one of the alternatives below it. Choose the correct alternative. - ba _ b _ aabb _ a _ _ a _ bb

B. ABABBA

In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces. - 20, 19, 17, x , 10, 5

C. 14

In following questions, a sequence of groups of alphabets and numbers is provided with one term missing , Choose the missing term from options. - shg, rif, qje, pkd, ?

B. OLC