In a group of five friends:

- Amy is taller than Carla.
- Dan is shorter than Eric but taller than Bob.
- Eric is shorter than Carla.

Who is the shortest?
(A) Amy
(B) Bob
(C) Carla
(D) Dan
(E) Eric
We use $A, B, C, D, E$ to represent Amy, Bob, Carla, Dan, and Eric, respectively.

We use the greater than symbol $(>)$ to represent "is taller than" and the less than symbol $(C$.

From the second bullet, $DB$ so $E>D>B$.

From the third bullet, $EE$.

Since $A>C$ and $C>E$ and $E>D>B$, then $A>C>E>D>B$, which means that Bob is the shortest.

Answer: (B)

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