Consider the Benjamini-Hochberg (BH) procedure for controlling the False Discovery Rate (FDR) at $\alpha = 0.05$ with $m=20$ tests. Let $p_{(1)} \le p_{(2)} \le \dots \le p_{(20)}$ be the ordered p-values. Which condition determines the largest $k$ for which we reject $H_{(1)}, \dots, H_{(k)}$?