On a force out at second base the defensive player can . A tag the runner

B tag second base

C Neither a nor b

D Both a and b

I’m not sure but I believe it’s ... um tag the runner

If it's a smaller child or infant, place one on the middle of the chest and on the child's back. (if it is a bigger child with enough room for two, place one on the upper right/your left of the chest, and one on the lower left/your right) the pads should never touch each other. 

No, when getting the flu vaccine no drugs should be being takin at the time.