A Series Ac Circuit Has a Resistance Of $2.0 \mathrm { k } \Omega$

A series ac circuit has a resistance of $2.0 \mathrm { k } \Omega$ , a capacitance of $8.0 \mu \mathrm { F }$ , and an inductance of $9.0 \mathrm { H }$ . If the frequency of the alternating current is $4.0 / \pi \mathrm { kHz }$ , by what angle does the voltage lead the current?

A) $+ 36 \mathrm { rad }$
B) +3.1 rad
C) $- 1.8 \mathrm { rad }$
D) $+ 1.5 \mathrm { rad }$
E) $- 3.1 \mathrm { rad }$