Sentence Correction (SC) | Re: In 1979 lack of rain reduced India's rice production to

We only want to use "that of" or "those of" if we are comparing something *belonging* to something else:

The design of the new tablet is similar to that of its predecessor. (The design of one is similar to the design of the other.)
Jack wanted clothes similar to those of his friends. (He wants his clothes to be similar to his friends' clothes.)

In the above examples, it would be a big problem to get rid of the relative pronoun:

The design of the new tablet is similar to