In which initial stage of animal cells does glucose break down?

We find that in glycolysis there is one step where $NADH + H^{+}$ is formed from $NAD^{+}$; this is when:

How many pyruvate molecules are produced by the oxidation of $1$ glucose molecule?

Which group of the following scientists discovered the $EMP$ pathway of glycolysis?

Provide the full names for the following abbreviations:
$(1)$ $DHAP$
$(2)$ $Co-A$

Which of the following is true regarding glycolysis?
$I.$ Takes place in cytosol
$II.$ Produces no $ATP$
$III.$ Has no connection with electron transport chain
$IV.$ Reduces three molecules of $NAD^+$ for every glucose molecule processed
Choose the correct option.