What can we learn from the Spanish Flu?

The best time to go swimming is: a. directly after eating b. when you are feeling rested and energetic c. when you are feeling tired and sluggish d. a half hour after eating

In a search a driver needs to look in a of distances far away to near, as well as to the left, right and rear of the vehicle, making efficient use of both central and fringe vision. a) fast manner b) systematic manner c) slow manner d) aggressive

Where does a fertilized egg spend most of its time?