At which phase of meiosis,bivalent chromosomes align on the equatorial plate $:-$

Which of the following statements are correct regarding meiosis?

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:

In oocytes,which stage can last for months or years,since at this stage the chromosomes decondense and are engaged in $RNA$ synthesis?

The process of appearance of recombination nodules occurs at which sub-stage of prophase $I$ in meiosis?

After meiosis $I$,the resultant daughter cells have