The missing term in the following series is:

N5V, K7T, ?, E14P, B19N

H10R

The correct answer is Option (3) → H10R

1. The First Letter Pattern (N, K, ?, E, B)

Let's look at the positions of these letters in the English alphabet:

• N = 14
• K = 11 (14 - 3)
• ? = 8 (11 - 3) $\rightarrow$ H
• E = 5 (8 - 3)
• B = 2 (5 - 3)

Pattern: Subtract 3 from the position of the previous letter. The missing first letter is H.

2. The Middle Number Pattern (5, 7, ?, 14, 19)

Let's look at the gaps between the numbers:

• 5 to 7 = +2
• 7 to ? = +3 $\rightarrow$ 10
• 10 to 14 = +4
• 14 to 19 = +5

Pattern: The numbers increase by prime-like consecutive increments (+2, +3, +4, +5). The missing number is 10.

3. The Last Letter Pattern (V, T, ?, P, N)

Looking at the positions in the alphabet:

• V = 22
• T = 20 (22 - 2)
• ? = 18 (20 - 2) $\rightarrow$ R
• P = 16 (18 - 2)
• N = 14 (16 - 2)

Pattern: Subtract 2 from the position of the previous letter. The missing last letter is R.

Conclusion

Combining the parts (H, 10, and R), the missing term is H10R.