Answer:
The correct answer is option C.
Explanation:
In this case we are making a descripton. When we compare or describe something we need an adjective.
Adjectives are those words that qualify a noun, describe a property of it, or express a quality.
There are many types of adjectives, and they must match in gender and number with the noun they are qualifying.
In the sentence given, we have the noun "treatment", and of the options given, the best is: adequate and satisfactory.
