CH4 and SiF4 are examples of tetrahedral geometry. Which of the following are true regarding these two molecules?
I. The carbon-hydrogen bonds are dipoles
II. The silicon-fluorine bonds are dipoles
III. Methane is nonpolar
IV. SiF4 has zero dipole moment
|A||I & II only|
|C||II & III only|
|D||I, II, III & IV|