1) When you have a toothache, you feel pain because: a. there is a cavity in your tooth
b. tiny bits of food are left between your teeth
c. bacteria digest the food left between your teeth and produce an acid
d. the cavity reaches the nerves and the nerves send a message to the
brain

help:(​

the answer is D

Explanation:

dk why the answer has to be over 20 characters but...

the correct answer is:

this is an example of the writer telling through description rather than showing through dialogue.

sometimes writers like to explain explicitely what's happening instead of adding dialogues of the situations., which is the case in this passage,