Read the conversation and answer the question.
Efe: Mom, I finished my homework. Can I play video games now?
Mom: Not yet, dear. You have chores to do first. Please take out the garbage and water the plants.
Efe: But I always do those on Saturdays! Today is Tuesday.
Mom: I know, but your sister is sick, so she can't do her chores today. You need to help.
Efe: Okay, I'll do them.
Which of the following is TRUE according to the conversation?
A)Efe usually does chores on Tuesdays.
B)Efe's sister always does the chores on Saturdays.
C)Efe has to do extra chores because his sister is ill.
D)Efe's mother does the chores every day.