Read the passage below carefully:
In January 1985, the Cocoa Research Institute of Nigeria (CRIN), located in Ibadan, introduced a revamped agronomic protocol designed to combat the spread of Black Pod disease caused by Phytophthora megakarya. Under this directive, plantation managers were advised to maintain a strict three-week spraying cycle during the peak rainy season using copper-based fungicides, rather than the traditional four-week schedule. Furthermore, the protocol explicitly mandated the immediate removal and burial of infected pods at a minimum depth of thirty centimeters to prevent spore dispersal by rain splash. Although the directive recommended shade tree pruning as an auxiliary microclimate control measure, it strictly prohibited the intercropping of cocoa with cassava due to root competition, allowing intercropping only with plantain during the initial two years of field establishment.
According to the passage, under the 1985 CRIN directive, under what specific condition was intercropping permitted on cocoa plantations?
- Only when using plantain crops during the initial two years of field establishmentAnswer
- BProvided that cassava is cultivated at a minimum depth of thirty centimeters alongside cocoa
- CWhenever shade trees are systematically pruned to ensure auxiliary microclimate control
- DThroughout the entire cultivation cycle if copper-based fungicides are sprayed every three weeks