Read the following paragraph and answer the question. Give ONLY the answer, no other words or explanation.

For example:

Answer: <most likely answer, as short as possible>.

Paragraph: I remember once in fourth grade my teacher , Mrs. Armstrong , asked a question . I raised my and , was called on , and gave the word she was looking for . She waited a minute and then declared I was too soft ; repeat it , louder . I sighed a little and repeated .

Question: What may be the reason for their teacher asking them to speak up ?
They wanted the answer to be repeated .
The teacher may not have heard them clearly.