Explanation:

- Option 1: Elephants

- Elephants often symbolize wisdom, loyalty, and strength. Although Husain has painted elephants, they are not as prominent as horses in his interpretations.

- Option 2: Horses

- Horses are correct here. They are frequently used by M.F. Husain to symbolize energy, strength, and the spirit of freedom. Their dynamic form and movement effectively convey a sense of liveliness.

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- Option 3: Cows

- While cows are symbols of fertility and spirituality in Indian culture, Husain's paintings more vividly express liveliness through horses.

- Option 4: Tigers

- Tigers might depict strength and power, but they do not capture the same sense of free spirit and liveliness as the horses in Husain’s work.