Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements. Statements: All cushions are bumpers. Some teethers are cushions. All pacifiers are teethers. Conclusions:
I. All pacifiers are bumpers.
II. Some pacifiers are bumpers.
III. Some bumpers are teethers.
IV. All teethers are bumpers.