Answer: Something that is able to achieve a desired outcome or end result. A good solid argument that lets you convince others of your point
Explanation:.
Voiceless combinations of two consonants are called diagraphs. An example of this would be "st" or "ch". The opposite to this is a voiced combination that is called a blend.
Researchers should be studying how brain chemistry is affected when children read about love in fairy tales.
The answer is C as it is grammatically correct
