Find the odd one in the following groups :

{Q, W, Z, B }   {B, H, K, M}   {W, C, G, J}    {M, S, V, X}

The Correct answer is Option 3. 

Key Points To find the odd one out, let's examine the letters in each group:

Group 1: Q, W, Z, B
Group 2: B, H, K, M
Group 3: W, C, G, J
Group 4: M, S, V, X

Now, let's analyze:

Group 1 consists of letters from the first four characters of the English alphabet.
Group 2 consists of letters from the second half of the English alphabet.
Group 3 consists of letters from the second half of the alphabet, but it also includes C, which is from the first half.
Group 4 consists of letters from the second half of the alphabet.
From this analysis, we can see that Group 3 (W, C, G, J) is the odd one out because it includes a letter from the first half of the alphabet while the other groups consist entirely of letters from the second half.

So, the odd one out is:

W, C, G, J