Small ILS Q

[Cron]

I would be grateful for an explanation as to the answer to the following Q.

Thanks in advance for your help.


Q: Under what circumstances would an ILS glide path in excess of 3 deg be used?
a) Where other means of obstacle clearance are impractical
b) For aircraft with STOL capabilities
c) Where noise abatement restrictions make a less steep approach impractical
d) Parallel runway operations