Which if the following crops below requires the following conditions for successful cultivation?
i Heavy rainfall of between 1270mm (50 ins) and 2000mm (80 ins) during the 4 to 6 months growing periods.
ii High mean temperature of 18° to 27°C (65° to 80°F) no cold season.
iii A warm, dry period for harvesting.
iv Loamy or clayey soil and an almost level ground.
V Cheap and abundant labour.