lsquo Man rsquo is related to 39 Mammal rsquo in the same way as lsquo Rat rsquo is related to lsqu...........

Explanation:

Man comes under the category of mammals.Mammals are vertebrate animals  and characterized by the presence of mammary glands which in females produce milk for feeding  their young ones.Similarly in the same way rats comes under the category of rodents.Rodents are mammals of the order Rodentia, which are characterized by a single pair of continuously growing incisors in each of the upper and lower jaws.Hence option 2 is the correct answer.