In the following the questions choose the word which best expresses the…

Explanation:

Rescue means to save or help someone who is in danger or experiencing an emergency.

• Why 'Help' is correct: 'Help' expresses providing assistance or saving someone, which matches the action implied by 'Rescue'.

• Why 'Command' is incorrect: 'Command' means an order or instruction, not an act of saving someone.

• Why 'Defence' is incorrect: 'Defence' refers to protection or resisting attack, which is different from actively rescuing someone from danger.

• Why 'Safety' is incorrect: 'Safety' is the state of being free from danger, whereas 'Rescue' describes the action of removing someone from danger.

Therefore, the best word that expresses the meaning of 'Rescue' is 'Help'.