Titan, the Largest Moon of Saturn, Has an Orbital Period

Multiple Choice

Titan, the largest moon of Saturn, has an orbital period of 16 days and a semimajor axis of 1.2 *10⁹ m.Based on this information, what is Saturn's mass? For reference, Earth's mass is
6 * 10²⁴ kg.

A) 290 M_Earth
B) 130 M_Earth
C) 90 M_Earth
D) 40 M_Earth
E) 4 M_Earth