Hi vipulgoyal,

This SC is ultimately about Modification rules, although there are some secondary rules worth knowing:

1) Modification: The answers all use the word "direct" or "directly." Modifiers ultimately "describe" another word/phrase and should be placed as close to that word/phrase as possible. Here, the big choice is between "direct communication" (which describes the communication) and "directly through" (which is redundant; you either go "through" or you don't - the word "directly" should not be modifying "through"). Eliminate A and C. By extension, the phrase "communication directly" uses an incorrect modifier. Eliminate E.

2) Pronouns: In answer B, the pronoun "it" does not clearly refer back to 1 subject. The "it" could be a reference to "a physical dimension" or "a spiritual dimension." This is called an ambiguous pronoun and it is incorrect. Eliminate B.

Final Answer: D

GMAT assassins aren't born, they're made,
Rich