C. Median toxicity.
Explanation – The frequency of drugs are given based on its toxicity or the side effects in the body. All drugs have certain half-life in which there action is maximum and after that the drug is removed through the urine primarily.
Different people react differently to a drug and hence the doctors prescribe the anti-tablets for the side effects occurring. The drug for cold is prescribed after four hours because its effect gets reduced and has to be removed from the body.
Here are three cultural challenges related to communication:
1. Accent – each culture has different way of speaking. Each have different accents of the way they speak.
2. Fluency in speaking – some people find it hard to be fluent in communicating specially when they are not using their mother tongue.
<span>3. Conflicting beliefs – in communicating the ideas, some people don’t just believe in the culture of others. He hates or does not want to listen to their ideas.</span>
ANSWER: Tongue
Explanation: