Which of the following risks is the least likely to affect an individual who has been smoking for only a few months? A.
lung cancer
B.
shortness of breath
C.
yellowing teeth
D.
reduced sense of smell

It would be answer choice b (1975)

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.