Well, the word medicine is the general synonym of antibiotic - they mean the same thing.
Consuming high levels of pro vitamin A carotenoid, which come from plant sources, does not lead to vitamin A toxicity. This statement is true.
Vitamin A is obtained mainly from the food products we eat, but it is also synthesized in our body via pro vitamin A carotenoids like beta-carotene. When high amounts of pro vitamin A carotene are consumed in the diet of a person they are converted very slowly and naturally in our body into vitamin A in the intestine.
Vitamin A has many benefits including defense from pathogens, strengthening immune system, improving vision, and also improving overall growth and development of the body etc.
To know more about vitamin A refer to the link below
brainly.com/question/9179407
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I had to take a screenshot of my response since it was getting flagged for being inappropriate for some reason.
It is known as a concentration gradient which in diffusion will always flow from ares of high concentration to areas of low concentrations
So i believe the answer to this is A.