The correct answer is option 'C' - Gandhi's imprisonment.

Explanation:
The non-cooperation movement was a significant phase in India's struggle for independence from British rule. It was launched by Mahatma Gandhi in 1920 with the aim of nonviolent resistance against British colonial rule.

1. Non-Cooperation Movement:
- The non-cooperation movement aimed to unite Indians in a nonviolent protest against British rule and to boycott British institutions, goods, and services.
- It gained widespread support from the Indian population, including students, lawyers, and merchants.
- The movement emphasized the use of nonviolent civil disobedience, such as the boycott of British-made products, surrender of titles and honors, and withdrawal from British institutions.

2. Chauri Chaura incident:
- On February 5, 1922, a violent incident took place in Chauri Chaura, a small town in Uttar Pradesh, India.
- During a protest against the British, a group of protesters attacked the local police station, resulting in the death of 22 policemen.
- Mahatma Gandhi, upon hearing about the incident, called off the non-cooperation movement as he believed that the movement had lost its nonviolent character.

3. Jallianwala Bagh massacre:
- The Jallianwala Bagh massacre took place on April 13, 1919, in Amritsar, Punjab.
- British troops, under the command of Colonel Reginald Dyer, opened fire on a crowd of unarmed Indian protesters who had gathered in Jallianwala Bagh.
- The massacre resulted in the death of hundreds of Indians and left thousands injured.
- While the Jallianwala Bagh massacre was a brutal event that fueled the Indian freedom struggle, it did not directly lead to the withdrawal of the non-cooperation movement.

4. Gandhi's imprisonment:
- After the Chauri Chaura incident, Mahatma Gandhi, in order to maintain the nonviolent character of the movement, decided to take responsibility for the violence and was arrested by the British authorities.
- Gandhi's imprisonment had a significant impact on the non-cooperation movement as his arrest led to a loss of leadership and direction.
- Without Gandhi's guidance, the movement gradually lost momentum and was eventually withdrawn.

In conclusion, the non-cooperation movement was withdrawn due to Mahatma Gandhi's imprisonment, which resulted from the violent Chauri Chaura incident. The movement was initially successful in garnering massive support, but the loss of its nonviolent character and leadership led to its withdrawal.