In each question two columns are given, each containing three phrases/sentences.
Choose the option that will connect the phrases to form meaningful and correct sentences.

Column-I
(A) Jawaharlal Nehru laid the foundation stone of the National Museum in
(B) The feeling a person develops by practising devotion is unique
(C) Scientists believe that underwater mountains formed
Column-II
(D) through volcanic activity are potentially rich in cobalt.
(E) Sobha Singh who built many of Lutyens’ buildings before independence.
(F) a job we most cherish, and bhakti is an excellent activity.

To find the correct connection between the columns, let us analyze the grammatical correctness and meaningfulness of the combinations:

1. Consider A-E:
"Jawaharlal Nehru laid the foundation stone of the National Museum in Sobha Singh who built many of Lutyens’ buildings before independence."
This sentence is grammatically incorrect and makes no logical sense. The preposition "in" is typically followed by a year or a location (like "in 1955" or "in New Delhi"), not a person's name.

2. Consider B-E:
"The feeling a person develops by practising devotion is unique Sobha Singh who built many of Lutyens’ buildings before independence."
This combination connects two completely unrelated thoughts and is grammatically incorrect.

3. Consider B-F:
"The feeling a person develops by practising devotion is unique a job we most cherish, and bhakti is an excellent activity."
This sentence is disjointed and lacks proper grammatical linkage between "unique" and "a job".

4. Consider C-D:
"Scientists believe that underwater mountains formed through volcanic activity are potentially rich in cobalt."
This sentence is grammatically complete, correct, and logically coherent. The clause "formed through volcanic activity" correctly modifies "underwater mountains", and the main verb phrase "are potentially rich in cobalt" completes the thought about what scientists believe.

Therefore, the only correct and meaningful connection is C-D.