B. They don't need much space. (I may be wrong)
Answer:improve vocabulary
Explanation:sound more validated and educated on whatever topic you’re writing about using accurate words and more educated vocabulary
I would say "<span>A." a chance
</span>
Answer:
<u>1</u><u>)</u><u>Amplitude</u>
<u>2</u><u>)</u><u>Modulation</u>
<u>3</u><u>)</u><u>Frequency</u><u> </u>
<u>4</u><u>)</u><u>Modulation</u>