Answer:
A. our previous knowledge fills in background information whenever we're understanding an event or conversation.
Step-by-step explanation:
Betsy wanting to bring Jacob a present and then her shaking her piggy bank to check for money will make most people believe Betsy was checking her piggy bank to see if she had money to spend on the gift.
This is due to the fact that as individuals we employ the use of our previous knowledge fills in background information whenever we're understanding an event or conversation.