Which two reasons could be causing this issue?

The Finance team at Universal Containers usually does not need access to Account and Contract records A .. given Opportunity access for a big deal to help with tax calculation. She can now also access Account and C..

Which two reasons could be causing this issue? Choose 2 answers

A. Contact records can be accessed due to implicit sharing from Account.

B. Account records can be accessed due to implicit sharing from Opportunity.

C. Contact records can be accessed due to implicit sharing from Opportunity.

D. Account records can be access due to role hierarchy.

Answer: A,B