In which case might a Presidential System have fewer veto points than a Parliamentary system?

a. Presidential systems will always have fewer veto points than Parliamentary systems.
b. A Presidential system with one party controlling the presidency and another controlling both houses of a bicameral legislature and a Parliamentary system with a coalition government
c. A Presidential system with one party controlling the presidency and one both house of a bicameral legislature and a Parliamentary system with a clear majority government
d. A Presidential system with one party controlling the presidency and both houses of a bicameral legislature and a Parliamentary system with a coalition government
e. A Presidential system will never have fewer veto points than a Parliamentary system.

D