The reversible reaction below occurs in a sealed container at fixed temperature. $\text{P(g)} + \text{Q(g)} + \text{R(g)} \rightleftharpoons \text{S(g)} + \text{T(g)}$ Once equilibrium is established, extra $\text{T}$ is introduced. Following the addition of $\text{T}$, which substances have an increase in concentration?
- AP, Q, R and S
- BP and Q only
- CP, Q and R only
- DS only