The Great Leap Forward (GLF) campaign was initiated in _____.

The correct option is 1958.

Step-by-step Explanation:

1. The Great Leap Forward (GLF) was a major economic and social campaign initiated by the Communist Party of China (CPC) under the leadership of Chairman Mao Zedong.
2. The primary objective of the campaign was to rapidly transform China from an agrarian economy into an industrialized socialist society through rapid industrialization and collectivization.
3. This campaign was officially launched and implemented starting in the year 1958 and lasted until 1962.
4. Therefore, the year in which the Great Leap Forward campaign was initiated is 1958, corresponding directly to the provided correct option.