<u>Answer</u>:-
The only correct option is half the no.(number) of chromosome with respect to the parents chromosomes.
<u>Explanation</u>:-
Meiosis is taken from a Greek word which means lessening.
As the parent cells undergo meiosis they creates 4 haploid daughter cells with the half/halve number of chromosomes.
So as you can see it, in meiosis the number of chromosomes are halved.
<u>History of meiosis</u>:-
Meiosis were first discovered in 1876 by a German(particularly from Berlin) biologist named Oscar Hertwig and later some details were studied in 1883.
<em>For further details you can see video lectures from Khan Academy, Crush course and many more.</em>
