Johannes Kepler Discovered That a Planet's Mean Distance $R$ From the Sun (In Astronomical Units)is Related to Its Period

Multiple Choice

Johannes Kepler discovered that a planet's mean distance $R$ from the sun (in astronomical units) is related to its period $T$ (in years) by the formula $R = \sqrt [ 3 ] { \frac { T ^ { 2 } } { k } }$ Find $R$ when $T = 1.881$ and $k = 1.002$ .

A) 1.52 AU
B) 1.22 AU
C) 1.37 AU
D) 1.35 AU
E) 1.45 AU