Select the correct passive form of the given sentence.
The maid washes the windows every week.

Correct option is B

The correct passive form of the given sentence "The maid washes the windows every week" is:
"The windows are washed every week by the maid."
In the passive voice, the object of the active sentence ("the windows") becomes the subject, since active form of the sentence is present indefinite tense, helping verb “are” is used, the verb is changed to its past participle form ("washed"), and the subject of the active sentence ("the maid") becomes the object of the preposition "by."
Rules for changing from active to passive are as follows:
Subject + is/am/are + V1 + Object Object + is/am/are+ V3+ by Subject.