Which two factors often determine the type of rock that is formed by a process. A. Whether the process takes place north or south of the equator
B. The type of material that is present at the beginning of the
process
C. The amount of time the process of rock formation takes
D. The season in which the rock formation process ends

b is the correct answer

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c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.