Which statement about motor boats, based on common definitions, is correct?

Which statement about motor boats, based on common definitions, is correct?

• A. A motor boat can have no sails.
• B. A motor boat must be sail-free.
• C. A motor boat cannot operate with sails.
• D. A motor boat can include sail and motor.

Answer: (D)

Motor boats are defined by propulsion from an engine, but having sails as an auxiliary power source is still compatible with that definition. The correct statement reflects that an engine-powered vessel can also carry and use sails, so it can operate with both sail and motor. This captures the common classification where a boat may rely on the engine for propulsion and still sail when wind allows, often called a motor-sailer or power-sailor. The other ideas imply sails must be absent or that sails can never be used, which isn’t accurate for many motor-powered boats.

Motor boats are defined by propulsion from an engine, but having sails as an auxiliary power source is still compatible with that definition. The correct statement reflects that an engine-powered vessel can also carry and use sails, so it can operate with both sail and motor. This captures the common classification where a boat may rely on the engine for propulsion and still sail when wind allows, often called a motor-sailer or power-sailor. The other ideas imply sails must be absent or that sails can never be used, which isn’t accurate for many motor-powered boats.