Hey everyone , I have a university assignment

Which i am stuck on a few things for javascript , can anyone please help me out ??

Appropriate input devices that allow multiple selections of these
items. Selection or non selection of values for these items set
the display rules for its subsections as follows:
• B – Already selected and input devices b1 to b5
activated.
• C – Initially not selected and subsections c1 to c11 are
inactive. If C is selected in subsections are activated.
• D - Initially not selected and subsection d1 is inactive. If
D is selected d1 becomes active.
• E - Initially not selected and subsections e1 to e3 are
inactive. If E is selected in subsections are activated.

If anyone actually responds i will gladly tell them more about it ?