PLEASE ANSWERRR

Which of the following statements regarding electric insulators is correct?

A. Electric charges move freely in electric insulators.
B. Electric insulators are good heat conductors.
C. Charges within electric insulators do not readily move.
D. Electric insulators have high tensile strength.

Ican determine the molar mass of an element by looking on the under the atomic mass for the element. for example the molar mass of phosphorus is 30.974 grams/mole. avogadro’s number tells me the amount of representative particles in 1 mole of any substance. this means 12.011 gram sample of carbon and a 32.0 gram sample of sulfur have the same number of atoms.