Correct answer: (b) Satpura, Mahadeo, Maikal and Chhotanagpur
Explanation
- A
Maikal, Satpura, Mahadeo and Chhotanagpur
(a) Maikal, Satpura, Mahadeo, Chhotanagpur. Maikal lies east of the Mahadeo–Satpura block, so starting in the east violates west-to-east order.
- B
Satpura, Mahadeo, Maikal and Chhotanagpur
(b) Satpura, Mahadeo, Maikal and Chhotanagpur. From the Tapti–Narmada west, the Satpura range runs east into the Mahadeo Hills (Pachmarhi), then the Maikal range (Amarkantak), then the Chhotanagpur plateau. That is the official west-to-east walk.
- C
Maikal, Mahadeo, Satpura and Chhotanagpur
(c) Maikal, Mahadeo, Satpura, Chhotanagpur. Maikal cannot lead a west-to-east list; Satpura is the westernmost of the four.
- D
Satpura, Mahadeo, Chhotanagpur and Maikal
(d) Satpura, Mahadeo, Chhotanagpur and Maikal. Chhotanagpur is the easternmost plateau; Maikal sits west of it, so this ending is reversed.
Summary. Official key is (b) Satpura, Mahadeo, Maikal and Chhotanagpur. Central Indian relief from west to east is Satpura → Mahadeo (Pachmarhi) → Maikal (Amarkantak) → Chhotanagpur. Maikal-first codes start too far east; a Chhotanagpur-before-Maikal code ends too soon. Honour the stored letter (b).