At What Frequency Would the Reactance of a 100-PF Capactor $\Omega$

Multiple Choice

At what frequency would the reactance of a 100-pF capactor be 1000 $\Omega$ ?

A) 3.18 MHz
B) 15.9 MHz
C) 1.59 MHz
D) 3.98 MHz
E) 2.54 Mhz