A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
YEB, WFD, UHG, SKI, ….

Options

A. QOL
B. QGL
C. TOL
D. QNL

Explanation

To solve the problem, we need to identify the pattern in the given series of letter groups: YEB, WFD, UHG, SKI, ...

Let's break down the solution step by step:

### Step 1: Analyze the first letters
The first letters of each group are:
- Y
- W
- U
- S

To find the pattern, we can look at their positions in the alphabet:
- Y is the 25th letter
- W is the 23rd letter
- U is the 21st letter
- S is the 19th letter

We can see that each letter is decreasing by 2:
- Y (25) → W (23) → U (21) → S (19)

So, the next letter will be:
- S (19) - 2 = Q (17)

### Step 2: Analyze the second letters
The second letters of each group are:
- E
- F
- H
- K

Again, we look at their positions:
- E is the 5th letter
- F is the 6th letter
- H is the 8th letter
- K is the 11th letter

Now, let's find the differences:
- E (5) → F (6) is +1
- F (6) → H (8) is +2
- H (8) → K (11) is +3

The pattern is increasing by 1, 2, and 3. So, the next increment will be +4:
- K (11) + 4 = O (15)

### Step 3: Analyze the third letters
The third letters of each group are:
- B
- D
- G
- I

Their positions are:
- B is the 2nd letter
- D is the 4th letter
- G is the 7th letter
- I is the 9th letter

Now, let's find the differences:
- B (2) → D (4) is +2
- D (4) → G (7) is +3
- G (7) → I (9) is +2

The pattern alternates between +2 and +3. The next increment after I (9) should be +3:
- I (9) + 3 = L (12)

### Step 4: Combine the results
Now we combine the results from each step:
- First letter: Q
- Second letter: O
- Third letter: L

Thus, the missing term in the series is **QOL**.

### Final Answer:
The answer is QOL.