How can a raft be inflated?

A raft can indeed be inflated manually or automatically, which reflects the dual methods available for achieving proper inflation based on situational needs. Manual inflation typically involves using a hand or foot pump, while automatic inflation incorporates gas-infused systems that rapidly deploy the raft in emergencies. This distinction is crucial, especially in a maritime context where time and efficiency can save lives.

While the other options mention specific methods like hand pumps, CO2 cylinders, electric blowers, or foot pumps, they do not encompass the broader categories of manual versus automatic inflation. Therefore, focusing on these two primary methods provides a clear understanding of the inflation techniques applicable to a raft in various emergency scenarios.