What two factors determine the choice of calendar for an activity?

Selecting the appropriate calendar for an activity in Primavera P6 depends on resource availability and non-working day exceptions. Resource availability ensures tasks align with the specific work shifts and working hours of assigned labor or equipment, while non-working day exceptions account for project site closures, weather constraints, and corporate or national holidays.

A. Task dependencies define sequential relationships between activities, whereas calendars define working and non-working time availability.
C. Project deadlines set target finish constraints but do not determine the daily working hours or calendar rules applied to activities.

- Oracle Primavera P6 EPPM Project Management Guide, Section: "Defining and Assigning Activity Calendars", Oracle Documentation.

- Oracle Primavera P6 Professional User Guide, Section: "Creating Calendars", Oracle Help Center.