Which of the following is a useful drug for malaria?

$A$ narrow spectrum antibiotic is active against

Bithional is an example of

Which of the following is an antidiabetic drug?

Explain artificial sweetening agents.

Given below are two statements:
Statement $I:$ Aspirin and Paracetamol belong to the class of narcotic analgesics.
Statement $II:$ Morphine and Heroin are non-narcotic analgesics.
In the light of the above statements,choose the correct answer from the options given below.