Answer:
A.) is the answer for the question
Answer:
I went to the optometrist and got new glasses. - D) a doctor who specializes in eyesight
It is important to always maintain your oral hygiene. - C) the practices done to stay healthy and prevent disease, especially through cleanliness
My brother was very helpful at my birthday party. - A) offering assistance to others
The lions at the zoo were inactive. - B) not moving and remaining sedentary
Explanation:
A. Wasn't.. This is because if you seperatevthe contractioninto two words it is was not, this would make the sentence be "Wally was not capable of lifting the heavy box."
If you were to do the same thing with weren't it would sound like "wally were not capable of lifting the heavy box." This does not make sense because "wally" is singular (so is "was not") and "were not" is pleural.
Hope this helps