Answer
D.
Work Step by Step
B. gives the opposite of the correct direction, and C. is simply untrue. A. is wrong since progress is away from one fork and towards another.
Campbell Biology (11th Edition)
by Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky
Published by
Pearson
ISBN 10:
0-13409-341-0
ISBN 13:
978-0-13409-341-3
Chapter 16 - Test Your Understanding - Level 1 - Knowledge/Comprehension - Page 333: 4
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