Explanation:

- The original phrase "deep effected" needs attention in terms of grammar and context.

- Option 1: "deeper affect" is incorrect because "deeper" is a comparative adjective and "affect" should be a verb. This phrase doesn't fit the context where an adverb and a past participle is needed.

- Option 2: "deeply affected" : This is the correct choice. "Deeply" is an adverb modifying "affected," the past participle of the verb. It fits well in expressing how Karan was moved by the film.

- Option 3: "deeply effective" is incorrect here. "Effective" is an adjective and doesn't correctly describe the impact on Karan.

- Option 4: "No substitution required" is not applicable as the original phrase is grammatically incorrect.

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