Which of the following pair(s) of movement and their year is/are correct? I.…

Movement-year matching questions test whether the year commonly associated with a phase of the freedom struggle in standard reference material matches the year given in the statement. Some phases carry a single, largely undisputed year (the Civil Disobedience Movement is dated to 1930, the year of the Dandi Salt March); others, like the joint Non-Cooperation and Khilafat Movement, unfolded in stages (Gandhi's call in 1920, ratification by the Congress at its Nagpur session in December 1920) and are conventionally dated in standard competitive-exam reference material to January 1921, when the joint campaign was formally underway nationwide.

Applying this to the two statements: the Civil Disobedience Movement's 1930 pairing matches its widely accepted start via the Salt March, so the first pairing holds. The Non-Cooperation and Khilafat Movement's 1921 pairing matches the year standard reference material conventionally cites for the joint campaign's formal, nationwide phase, so the second pairing also holds. Both pairings are therefore correct.

• Restricting the answer to only the Civil Disobedience Movement - 1930 pairing wrongly assumes the Non-Cooperation and Khilafat Movement - 1921 pairing must fail, but that pairing checks out too, as shown above.

• Restricting the answer to only the Non-Cooperation and Khilafat Movement - 1921 pairing wrongly assumes the Civil Disobedience Movement - 1930 pairing must fail, but that pairing is essentially undisputed.

• Rejecting both pairings is contradicted by the fact that each one independently checks out against standard reference material.

Since both pairings hold, the option covering both statements is correct. Some sources instead cite 1920 as the year the Non-Cooperation and Khilafat Movement's call was first given, but 1921 is the year most competitive-exam reference material uses for the joint campaign's formal nationwide phase.