What was one reason the legislative sessions in New Mexico were required to meet in January?

The requirement for legislative sessions in New Mexico to meet in January was primarily to allow field workers to participate in the legislative process. January falls after the harvest season, making it a suitable time for farmers and agricultural workers who might otherwise be busy with planting and other agricultural activities. This timing ensures that those directly impacted by legislation concerning agriculture, land use, and related issues can be involved in discussions and decisions, fostering greater representation of rural interests in the legislative process.

The other options, while relevant to various aspects of legislative operations, do not reflect this primary concern of agricultural scheduling and participation. Winter vacations do not significantly impact the scheduling of the legislative calendar, and there is no specific national law mandating states to convene at this time. "Meeting agricultural needs" is a broader concept that doesn't address the specific timing that January offers for worker participation.