Answer:
The verb "Rehusar" means "To Refuse".
The conjugation in spanish is the following:
- Yo me rehuso
-Tu te rehusas
- El se rehusa
- Ella se rehusa
- Nosotros nos rehusamos
- Ellos/ellas se rehusan
A sentence using the verb "Rehusar" could be the following:
"Me voy a rehusar a hacer ese trabajo."
C. Nobody knows
Explanation:
"One by one, the Classic cities in the southern lowlands were abandoned, and by A.D. 900, Maya civilization in that region had collapsed. The reason for this mysterious decline is unknown, though scholars have developed several competing theories." History channel
Hope this helps! :D