Glycolysis

Where does glycolysis occur?

$A-$ During glycolysis,$2$ $ATP$ and $2$ $NADH_2$ are formed.
$R-$ $2$ $ATP + 2$ $FADH_2 + 4$ $NADH_2$ are produced during glycolysis.

All are true about glycolysis except :

In both aerobic and anaerobic respiration,which product is formed in common?

Given below are two statements:
$Statement-I$: Glycolysis is a common step in anaerobic as well as aerobic respiration and it occurs in the mitochondrial matrix.
$Statement-II$: The first five steps of glycolysis constitute its preparatory phase.
In the light of the above statements,choose the correct answer from the options given below.