1. C. Osculate is the word that does not mean hostility. Osculate is a term in mathematics.
2. B. Efface is the word that does not mean a second appearance. To efface means to erase.
3. A. Decapitate is the word derived from Latin word for "head". Capita in Latin means head.
Answer:
He jumped at the sudden noise, but no one was behind him. So he kept walking, glancing back over his shoulder to make sure he was alone.
He is 73 years old
Explanation: He is also 73 years old