Only one answer seems to be correct which is D

Anything to do with the data model like objects, fields will be part Model.
Anything that contributes to the UI like LWC, Visualforce page, page layouts, etc will be part of View.
Anything that enforces some logic like apex class, trigger, validation rules, flows, process, etc will be part of the Controller.

Lightning component HTML represents the View, but not the Model

Trigger represents controller (C) like Workflows, Apex Classes and validation rules not Model
Correct Answers B - D