The nucleolus is the site of formation of (a) spindle fibres (b) chromosomes (c) ribosomes (d) peroxysomes.. explain it.

Dear student,

The correct option is (C) - 
The nucleolus is a site of synthesis and processing of rRNA. 
The correct assembly of rRNA with ribosomal proteins into ribosomal subunit also takes place in the nucleolus.

Regards.