Determine the gravitational field strength at the surface of Planet Y, gYg_YgY, in terms of gXg_XgX.
0.83gX0.83 g_X0.83gX
1.2gX1.2 g_X1.2gX
2.7gX2.7 g_X2.7gX
4.86gX4.86 g_X4.86gX