A student measures the volume of a rock, and then repeats the measurement two times. For the three measurements to be very precise, what must be true about them? A. The measurements must be very close to the true volume of the rock.

B. The measurements must be very close to one another.

C. At least one of the measurements must be equal to the true volume of the rock.

D. The three measurements must be reported in whole numbers, not decimals.