What of the following is true regarding using Social Accounts, Contacts and Leads features? Choose two answer

Answer options:

A.Through salesforce classic Twitter and YouTube can be accessed while in lightning only Twitter can be accessed.
B.Using social accounts, contacts and leads feature will require a separate license to be assigned to a user in salesforce
C.Using social accounts, contacts and leads feature will require users to have social network account on Twitter if using lightning and on Twitter and YouTube if using classic
D.Social accounts, contacts and leads feature is disabled by default

Correct Answer: A & C 
The social accounts, contacts and leads gives user the ability to have social services network information in contacts leads and accounts. This feature is enabled by default and can be disabled by admins.Social accounts, contacts and lead is available for Twitter and YouTube in Salesforce classic and for Twitter in salesforce lightning. To be able to use social accounts users will need to have social network account. 
Option B is incorrect because using the social accounts, contacts and leads doesn’t need a separate license. 
Option D is incorrect because the social contacts, accounts and leads is enabled by default. 

https://help.salesforce.com/articleView?id=social_networks_overview.htm&type=5

Correct Answer: A & C 
The social accounts, contacts and leads gives user the ability to have social services network information in contacts leads and accounts. This feature is enabled by default and can be disabled by admins.Social accounts, contacts and lead is available for Twitter and YouTube in Salesforce classic and for Twitter in salesforce lightning. To be able to use social accounts users will need to have social network account. 
Option B is incorrect because using the social accounts, contacts and leads doesn’t need a separate license. 
Option D is incorrect because the social contacts, accounts and leads is enabled by default. 

https://help.salesforce.com/articleView?id=social_networks_guidelines.htm&type=5