Final answer:
The expected due date (EDD) calculated by adding 284 days to the LMP of December 25, 2014, is October 5, 2015. However, since this date isn't one of the provided options, the closest answer given, within a slight margin of variation, would be October 2, 2015.
Step-by-step explanation:
The student's question pertains to calculating the expected due date (EDD) of a pregnancy, with the given last menstrual period (LMP) date being December 25, 2014. The standard method used by obstetricians is to add 284 days to the LMP to account for an average 40.5-week gestation period because conception is generally assumed to have occurred about 14 days from the LMP in a typical menstrual cycle. Thus, using the pregnancy duration from LMP:
- LMP: December 25, 2014
- EDD (Adding 284 days): October 5, 2015
However, none of the options provided by the student coincides with this calculated date. If we must choose from the given answers and assuming there is a slight variation due to different methods of calculation or specific adjustments, the closest option to the calculated October 5, 2015, date would be:
D) October 2, 2015