Which of the following events did not occur in british india in the year 1919?

a. gandhi started a second resistance campaign and marched 400 kilometers to the sea in protest of the salt tax. \

b. montague-chelmsford reforms increased the powers of the indian legislators and gave them control over the provincial administration of india.

c. the rowlatt act placed several restrictions on indians such as removing freedom of the press, in contradiction of earlier reforms.

d. during the jallianwala bagh massacre, also called the amritsar massacre, raj soldiers fired into a crowd at a peaceful demonstration, killing more than one thousand people.