The answer would be C, to encourage investment in developing safer cookstoves and fuels. The author repeatedly mentions how dangerous cooking can be in developing countries and the effects the gas and stoves used can have on the population.
I don't think a correction is necessary. Both parts of the sentence are already in the present tense. Plus, the use of "us" in the beginning of the sentence indicates a personal attachment.
The town has many types of people living in it. There are people coming from different parts of villages also from other countries. Rich poor all types of people including many religions
1 a : did , stay
B : stayed, arrived, did not / didn’t like, left, rented, were
A : started, didn’t finish, loved
2 : took , did happen, went, wasnt, did you see, came, wasnt, did you have , knew
3. Did you have , was ,stayed, thought, didnt go, did you do, did you go, spent, spent, argued, bought, didnt buy
