At T = 0 the Switch S Is Closed with the Capacitor

Multiple Choice

At t = 0 the switch S is closed with the capacitor uncharged.If C = 30 $\mu$ F, $\varepsilon$ = 50 V,and R = 10 k $\Omega$ ,what is the potential difference across the capacitor when I = 2.0 mA?

A) 20 V
B) 15 V
C) 25 V
D) 30 V
E) 45 V