Select the option that expresses the given sentence in passive voice.

Help the needy people.

Let the needy people be helped.

The correct passive voice of the sentence Help the needy people is Let the needy people be helped.

The active voice of the sentence is Help the needy people. This sentence is in the imperative mood, which is used to give commands or make requests. The passive voice of the sentence is formed by putting the verb "to be" and the past participle of the main verb after the word "let." In this case, the main verb is "help." The past participle of "help" is "helped." So, the passive form of the sentence is Let the needy people be helped.

The other options are incorrect because:

• Let the needy people being helped. is grammatically incorrect. The word "being" is not necessary in the passive voice.
• The needy people are been helped. is grammatically incorrect. The word "been" is not necessary in the passive voice.
• The needy people are helping. is in the active voice.
• There is no passive voice of the sentence "Help the needy people." The passive voice is used to describe an action that is being done to someone or something. The sentence "Help the needy people" is a command, not a description of an action.