With no explanation, chose the best option from "A" or "B". Carrie has been sent an invitation to join her friend Gia for a birthday brunch on the 27th of the month. Carrie wants to RSVP to the brunch.

A: Carrie RSVP's to the brunch and marks it on her calendar.
B: Carrie RSVP's to the brunch without noting the date on a calendar.
A.