<span>Up to three doses of sublingual nitroglycerin. Nitroglycerin can be taken 3 times a day for a patient with such a condition. This pharmaceutical medicine has a place with a class of medications known as nitrates. This medicine works well on Angina/congestive heart failure happens when the heart muscle isn't getting enough blood</span>
The correct answer here is certainly B. They allow scientists to perform new investigations and test new ideas they may not have been able to do in the past because scientists have been able to do the other 3 options without modern technology.
