Answer:
It shows what the characters say
Explanation:
Speech bubbles are used to show what characters are saying. It does not show internal dialogue, because internal dialogue is conveyed through <em>thought</em> bubbles, not speech bubbles.
A. unpleasant memories of Mary, who had burned protestants at the stake, remained
The function of the noun clause <em>that you are ready to graduate </em>is that of the subject of this sentence.
If you are unsure how to solve this, just change the whole noun clause with a pronoun, and it will become much easier: That is very clear to me. What is very clear to me? That.
Or use that question technique with this example: What is very clear to me? That you are ready to graduate.
A line horizontally drawn from the center of the circle is called radius
