Assertion (A): The Quit India Movement marked the culmination of Indian National Movement. Reason (R): After the Quit In
In Assertion-Reason, check both parts calmly. Here, the combination that fits is Both (A) and (R) are true and (R).... In Quit India Movement, this is how Assertion and Reason are linked. If you check Assertion first, then Reason, then the link, the answer becomes clear. That is the simple way to do it.
Ref: [UPPCS (Pre) 2005] | Bipan Chandra, India's Struggle for Independence, and NCERT History textbooks discuss Quit India Movement and explain the events, leaders and movements that support the correct answer for this question.