Which components can be added to a lightning app on custom object (choose 3 answers)a. visualforce b. standard lightning component c. custom lightning component d. global actions e. object specific actions on the custom object

b. Standard Lightning component.

c. Custom Lightning component.

d. Global actions

These three components are best used in a ligthening app, for custom object i.e standard, Custom and Global Actions.

Adding Visualforce components to a Lightning Application is impossible, but one can add Lightning components into Visualforce pages.