I'm pretty sure it is physical and mental development
You could take deep breaths and attempt to solve the problem yourself. You could also talk to someone who has dealt with similar problems in which they can help you solve your's. If that doesn't work, you could talk to your doctor about your stress so that he could prescribe you with a medication or a healthy lifestyle to help you with your stress.
The answer is D, since you are keeping your back straight. Your back will curve forward with poor posture.
<span>A physician must take into account the patient's weight in order to determine the dose of a medication. For certain medications, they must also take into account the desired effects. For instance, when treating hypertension, depending on the severity of the patient's high blood pressure the dose of the medication may be increased. The route of administration is determined by how quickly the physician wants the medication to take effect. For more immediate effects, a physician may choose to have the medication administered through an IV or an injection as opposed to having the patient take the medication orally.</span>
