Which statement best describes how direct injection differs from port injection and its effect on cold-start performance?

Which statement best describes how direct injection differs from port injection and its effect on cold-start performance?

• A. Direct injection delivers fuel into the intake manifold, while port injection delivers fuel directly into the combustion chamber.
• B. Direct injection delivers fuel into the intake manifold; port injection delivers fuel directly into the combustion chamber.
• C. Direct injection delivers fuel directly into the combustion chamber at high pressure; port injection delivers fuel into the intake manifold before the intake valve. Direct injection often improves efficiency and power but can complicate cold starts; port injection generally provides easier cold starts and a cooling effect on the intake charge.
• D. Port injection delivers fuel directly into the combustion chamber and Direct injection delivers fuel into the intake manifold.

Answer: (C)