Active-to-passive voice (modal verb with a stranded preposition): Convert the sentence to the correct passive construction while keeping the final preposition in place. Source sentence: You can play with these kittens quite safely. Instruction: Choose the grammatically correct passive-voice option.

Given data

• Active sentence: You can play with these kittens quite safely.
• Task: Form the correct passive with a modal and a prepositional verb (play with).

Concept / ApproachRule for modal passives: modal + be + past participle.Prepositional verbs keep the preposition with the verb; in passive, the preposition may be stranded at the end.

Step-by-step transformationObject becomes subject: these kittens → These kittensModal framework: can + be + playedKeep preposition with verb: played withPlace adverbial: quite safelyFinal passive: These kittens can be played with quite safely.

Eliminate wrong optionsA: Missing auxiliary be (can played). ❌B: Remains active; object and subject roles not switched. ❌C: Adds incorrect object you after with. ❌D: Correct passive with stranded preposition with. ✅

Common pitfalls

• Dropping be after a modal in passive.
• Forcing an object after the preposition when none is needed.

Final AnswerThese kittens can be played with quite safely.