Select the correct passive form of the given sentence. They should follow all the instructions carefully.

دیئے گئے جملے کی صحیح غیر فعال شکل منتخب کریں۔ انہیں تمام ہدایات پر احتیاط سے عمل کرنا چاہئے۔

All the instructions should be carefully followed by them.

Let the instructions be read carefully

All the instructions will be carefully followed by them.

All the instructions would be carefully followed by them.

The above sentence is in the active voice.
Let's look at the basic rules for converting active voice to passive voice are as follows:
- The object of the sentence must be turned into the subject of the sentence in the passive voice.
- Here, the subject in the active voice is 'they,' whereas the object is 'the instructions.'
- In the passive voice, the subject would be 'the instructions' and the object would be 'them.'
- Also, 'they' changes to them.' The below table is to represent the change of the subject pronoun to the object pronouns.
- Thus, as per the above-mentioned rules option, 3rd is correct and therefore the answer.