Question

Select the letter-cluster from among the given options that can replace the question mark (?) in the following series. JKL, MNO, PQR, ?

• A. SFD
• B. BHF
• C. STU
• D. DTG

Answer 1

Answer:

C. STU

Let's examine the series:

• JKL

• MNO

• PQR

• ?

Each term consists of 3 consecutive letters, and the starting letter moves forward by 3 positions:

• J → M → P → S

Therefore, the next cluster is:

$\boxed{\text{STU}}$

Answer: STU.