In the series A, B, C, D, E, F, G, how many times does the letter 'C' occur?

A. 1

In a family, M is the grandmother of N. N has two siblings, O and P. What is the relationship of O to M?

A. O IS M'S GRANDCHILD

Identify the odd letter group:

D. I, J, K, L, M

If '>' represents greater than, '<' represents less than, '=' represents equal to, and '?' represents not equal to, which of the following statements is true? 5 > 3 ? 2 < 4?

A. TRUE

Choose the odd letter group: ACD, BDF, CEG, DHI, EJK

D. EJK