Natural selection is based on which of the following?

The theory proposed by Hugo de Vries is called .......

Select the incorrect statements:
$I.$ Natural selection is essential for evolution.
$II.$ Natural selection does not include variations.
$III.$ The concept of natural selection was given by Hugo de Vries.
$IV.$ Mutation is a sudden inheritable change.
$V.$ The synthetic theory is also called the Neo-Darwinism theory of evolution.

Genetic drift occurs in which of the following?

'Population tends to increase geometrically,while food supply increases arithmetically'. This concept was put forward by

$A$: $A$ single large mutation called saltation can produce new species.
$R$: Mutations are directional.