Bursluluk sınavı 8. sınıf ingilizce soruları Test 1

Read the message and answer the question.
Hi Mark,
I'm writing to remind you about our science project meeting. We decided to meet at the city library at 3 PM tomorrow. Please don't forget to bring your research notes and the experiment materials. Let me know if you can't make it.
Best,
Sarah
Why did Sarah write this message to Mark?

A) To invite him to a science fair
B) To remind him about their meeting
C) To ask for the experiment materials
D) To change the meeting time