D. Antivirals, hope it helps
oh hello again, it is mentally impossible (unless you suffer severe brain/head injury) to forget everyone and everything. your brain is constantly taking mental photos of everyone and everything you see, you will always recognize someone you have seen a while ago even if its by the slightest. That probably wasn't my best wording, my brain is fried ☠.
distance=500m=1/2 hours.
speed=72km/hr
speed=distance/time
time=distance/speed
time=1/(72×2)
time=1/154 hour
Explanation:pla mark brainlist
