18. (show your work) The \( x \) and \( y \) coordinates in meters of the center of mass of the three-particle system shown below are:
A) \( 0 \mathrm{~m}, 0 \mathrm{~m} \)
B) \( 1.3 \mathrm{~m}, 1.7 \mathrm{~m} \)
C) \( 1.4 \mathrm{~m}, 1.9 \mathrm{~m} \)
D) \( 1.9 \mathrm{~m}, 2.5 \mathrm{~m} \)
E) \( 1.4 \mathrm{~m}, 2.5 \mathrm{~m} \)