This is a key event in the call of the wild.

as thornton got to his feet, buck seized his mittened hand between his jaws, pressing in with his teeth and releasing slowly, half-reluctantly.

what does this event symbolize?

a shared love for nature and the wild between two pals
a degree of competitiveness between two friends
an air of superiority between two acquaintances
an agreeable handshake between two friends

The given event symbolizes shared love for nature and the wild between two pals.

Option a

Both Buck and Thornton have genuine respect and love between them. Thornton does not abuse Buck like the other men he had and Buck respects Thornton by obeying his command. Thornton trusts buck as he had saved his life twice and brags about him to others about his capability.

When men offered money to buy Buck, Thornton refused. This shows the love and bonding between them and the trust on each other. Thus Thornton is the best Master one could ask for and Buck is the best pet one could have.

this would be in the imperative mood. it is a category of verb forms that are used to express orders,instructions,commands or requests.

the answer is a

explanation: