What is the main difference between split tunnel and full tunnel VPN connections?

Question $15$Select one:

a$.$

Full tunnel only allows traffic to the office to go through the VPN$,$ while split tunnel allows all traffic to go through the VPN

b$.$

Split tunnel only allows traffic to the office to go through the VPN$,$ while full tunnel allows all traffic to go through the VPN

c$.$

Split tunnel encrypts all traffic, while full tunnel only encrypts traffic to the office

d$.$

Full tunnel encrypts all traffic, while split tunnel only encrypts traffic to the office