Which of the following statements are correct about the Oauth2 authentication mode of the outbound...

Two Oubtbound REST interfaces are required for Oauth2 authentication.

The service type of the Outbound REST interface must be OAuth2 Token Service when the access token information is obtained.

The first Outbound REST interface transfers the access token to the second Outbound REST interface through the Keystore data.

The first Outbound REST interface transfers the access token to the second Outbound REST interface through the Oauth2 data.