How is a TOTP different from an HOTP? Select all that apply

a$.$ The timer interval in a TOTP is configurable but on an HOTP it resets on an hourly basis.

b$.$ An HOTP changes when a specific event occurs.

c$.$ A TOTP uses a software token, whereas an HOTP uses a hardware token.

d$.$ They both require the most steps to complete the authentication process.

e$.$ A TOTP is more secure than an HOTP.