Answer
$B. Q \gt K_{sp}$
Work Step by Step
To predict the precipitation of a compound in a solution, we can calculate the $Q$ value for its concentration:
$[AB] \lt -- \gt [A^+] + [B^-]$
$Q = [A^+] \times [B^-]$
If the calculated $Q$ is greater than the $K_{sp}$ for the compound $AB$, it will, most likely, precipitate.
