Correct Answer:
Option B - There is no information about statement (I) that country Y is producing this synthetic drug is much cheaper than growing plant C. So assumption (I) is not implicit. According to assumption (II) the effect of the synthetic drug is much different from the plant extract. So it can be clear that assumption (II) can be implicit.
B. There is no information about statement (I) that country Y is producing this synthetic drug is much cheaper than growing plant C. So assumption (I) is not implicit. According to assumption (II) the effect of the synthetic drug is much different from the plant extract. So it can be clear that assumption (II) can be implicit.