Caesar was proud about the victory.

what is the linking verb in the sentence?

caesar
proud
victory
was

Linking verbs are the verbs which give the information about the subject by connecting a word with the subject. It simply links the subject with the sentence and doesn't perform any kind of action.

Hence, in the given phrase, linking verb is 'was.' The linking verb links the subject 'Ceaser' to 'the victory.' Also, it doesn't show any kind of action and simply links with the rest of the sentence.

I've researched on your question and this is the question that came out:

What is the conflict in this selection?
A. It is the last game of the season.
B. The team has won all its games.
C. The weather is rainy.
D. The team is playing the state champions.

The conflict would probably be letter D. This is because you are playing against a team that has remained undefeated. This experience brings about a reminiscent effect on your psyche and the rest of your team mates as well.