If abel and baker run faster than charlie and donna but slower than elaine,
then we know that-
a abel runs as fast as baker.
b donna runs faster than elaine.
c charlie runs faster than donna.
d elaine runs the fastest.
e abel and baker run the slowest.

D

Explanation:

Draw a simple diagram. (attached)

Based on the diagram, it can be certain that Elaine runs the fastest.

new york state wildlife expert richard thomas found that a woodchuck could (and does) chuck around 35 cubic feet of dirt in the course of digging a burrow. thomas reasoned that if a woodchuck could chuck wood, he would chuck an amount equivalent to the weight of the dirt, or 700 pounds.