The correct answer is: Only I and III are implicit.
The statement “India’s economic growth has come at a terrible price of increased industrial and vehicular pollution” implies that pollution is a side effect of economic growth. This is because the statement does not say that pollution is the only side effect of economic growth, nor does it say that economic growth is the only cause of pollution. Therefore, assumption I is implicit.
The statement also implies that India desires economic growth with manageable side effects. This is because the statement says that pollution is a “terrible price” of economic growth, which suggests that India would prefer to have economic growth without pollution. Therefore, assumption III is implicit.
Assumption II is not implicit. The statement does not say that Indian economic growth is based on only industrial growth. It is possible that India’s economic growth is based on other factors, such as agriculture or services. Therefore, assumption II is not implicit.