Consider a game where two players, player 1 and player 2, negotiate a price of an object that is owned by player 2. The object is worth $350 to player 1. It is worth $150 to player 2. Player 1 offers a price for the object and then player 2 accepts or rejects player 1's offer, ending the game. What will be the price offered by player 1 in the unique subgame perfect equilibrium of the game?

a. $150

b. $250

c. $350

d. $200

1. Please don't use chatgpt and mention all formulas used