What are two valid OAuth flows and the corresponding OAuth grant types?

OAuth 2.0 provider APIs can support multiple OAuth flows, each of which corresponds to an OAuth grant type.

What are two valid OAuth flows and the corresponding OAuth grant types? (Select two.)
A . username, password
B . Client ID, Client secret
C . authorization url, auth token
D . Application, Client Credentials
E . Access Code, Authorization Code

Answer: DE

Explanation:

Reference https://www.ibm.com/support/knowledgecenter/en/SSFS6T/com.ibm.apic.toolkit.doc/ tapim_sec_api_config_scheme_oauth_endpoint.html