Advantage Function Definition

An agent is being trained in an environment where it must choose between two initial actions from the same starting position. Action A leads to a short sequence of steps resulting in a small, immediate reward. Action B leads to a much longer sequence of steps resulting in a large, delayed reward. According to the action-value function formula, which calculates the expected total discounted reward for taking an action in a state, how would decreasing the discount factor (γ) from a high value (e.g

Match each component of the action-value function formula, $Q(s, a) = \mathbb{E}[\sum_{t=0}^{\infty} \gamma^t r_t | s_0 = s, a_0 = a, \pi]$, with its correct description.