How many times does a cell divide during meiosis?

In which stage of meiosis does crossing over begin?

Given below are two statements:
Statement $I$: Chromosomes become gradually visible under light microscope during leptotene stage.
Statement $II$: The beginning of diplotene stage is recognized by dissolution of synaptonemal complex.
In the light of the above statements,choose the correct answer from the options given below:

Identify the phases of meiosis from the given options.

In which of the following does meiosis occur?

Meiosis occurs in $.....$.