What are the answer choices?
Using context clues and knowing the definition of certain words
The answer is D. You always want to make eye contact with your audience, you want to make sure your voice is loud enough for everyone to hear clearly and also have different pitches in your voice because you don’t want to sound monotoned and lastly, you always want to avoid distracting movement. This means not moving ur hands or body a lot but at the same time, you want to use ur hands for expressions and emotions in your speech, just don’t overdo it.
Read books, find out the difficult words and find it's meaning. This will enhance your vocabulary. Watch talk shows and speak English with your friends and family members.
Hope this Helps!