Arrange the following group of terms in order of increasing intension:
A. Tiger
B. Mammal
C. Feline
D. Animal
Choose the correct answer from the options given below:

Correct option is C

Intension refers to the amount of information or attributes contained in a concept. In the context of these terms:
 D. Animal has the lowest intension as it is the most general category and contains the least specific information about the attributes of the group.
 B. Mammal is more specific than 'Animal' and contains more attributes (e.g., being warm-blooded, having hair or fur).
 C. Feline is even more specific, including attributes of mammals but also specific to the feline family (like retractable claws, certain dental characteristics).
 A. Tiger has the highest intension as it is the most specific, containing all the attributes of the previous categories, plus those specific to tigers.
Thus, the order of increasing intension is Animal, Mammal, Feline, Tiger.