Aview of a spectacular sunset along a private beach is an example

a a private good.
b rival but nonexcludable good.
c nonrival but excludable good.
d public good.

B. NON RIVAL but EXCLUDABLE good

Explanation:

A good is Excludable if it can be feasibly prevented to be used by people , by efficiently excluding non paying consumers from using it .                                Ex: Excludable - Private Property , Non Excludable - Air Pollution

A good is Rival , if it's consumption by a consumer doesn't reduce it's availability for consumption by other consumers .                                               Ex : Rival -  Food Item , Non Rival - Voice of a Radio

A view of spectacular sunset along a private beach is :                                                    Excludable  ; because of it being 'Private'  - so can prevented to be accessed by non paying consumers                                                                                           Non Rival ; because consumption of that view by a consumer doesn't reduce its potentiality to be viewed by other people  [unless its exceptionally crowded]

government control and resources