Final answer:
The new moon occurs roughly 29.5 days after a full moon. Since the full moon is on December 1st, the next new moon would be around December 30th or 31st, with the closest given answer being December 29th (option D).
Step-by-step explanation:
If it is December 1st and there is a full moon outside, we can approximate the date of the next new moon by understanding the lunar cycle. The lunar cycle, from one new moon to the next, spans approximately 29.5 days. Given this information, we add about 29.5 days to December 1st for the next new moon, which would place it approximately on December 30th or December 31st, depending on the hour of the previous full moon. This is slightly later than any of the options provided, which indicates a potential error in the question, but the closest answer would be D. December 29th.