The correct answer is: a) December-January to April-May.
Ahu rice is a type of rice that is grown in the Philippines. It is a short-grain rice that is typically harvested in the early months of the year. The planting season for Ahu rice is typically from December to January, and the harvesting season is typically from April to May.
The other options are incorrect because they do not correspond to the typical planting and harvesting seasons for Ahu rice. Option b) is incorrect because it includes the months of September and October, which are typically the months when Ahu rice is harvested. Option c) is incorrect because it includes the months of June and July, which are typically the months when Ahu rice is planted. Option d) is incorrect because it includes the months of October and November, which are typically the months when Ahu rice is harvested.
I hope this helps! Let me know if you have any other questions.