Answer:
I would go with the first one but if u can take it again go wit the last one
Explanation:
The correct answer should be <span>C. </span><span>We painted two-thirds of the room this morning. Two-thirds is an example of compound words joined together with the use of hyphen. The other two options do not put hyphen to denote compound words.</span>
Are you talking about clauses?
C because we do not know how it is caused it doesn’t form the complete cause