The correct passive form of the given sentence is:

☀ The cow was touched and patted by the old lady.

 Let's break down the options:

1. The cow patted and touched the old lady. (Incorrect) This option is in the active voice and changes the roles of the subject and object from the original sentence. It does not represent the passive form of the sentence.

2. The cow was touched by the old lady patting her. (Incorrect) This option uses the correct passive form for one action ("was touched by the old lady") but introduces a different action ("patting her") that is not in the original sentence.

3. The cow was touched and patted by the old lady. (Correct) This sentence correctly uses the passive voice and conveys the same meaning as the original sentence. It includes both actions from the original sentence in the correct passive form.

4. The patted cow touched the old lady. (Incorrect) This option is in the active voice and changes the roles of the subject and object from the original sentence. It does not represent the passive form of the sentence.