Answer:
I believe it is sincere.
Explanation: process of elimination
It doesn't sound bleak or bitter and I'm pretty sure it's not matter-of-fact. I could be wrong.
Answer:
He/she/it is climbing.
Explanation:
Third person is describing a character using "he", "she" or "it". There is no "I" or "me" or "my". It is present; happening at the very moment. So "I am climbing the mountain (right now)." Progressive-moving along; going to finish up-in the process of doing.
