Scientists are analyzing the movement patterns of slime mold, which grows outward to search for its food sources by retracting from everything but the most efficient route, in an effort to better understand how to optimize traffic patterns.
(a) grows outward to search for its food sources by retracting
(b) grows outward to search for its food sources, and the slime mold retracts
(c) grows outward, searching for its food sources and retracting
(d) searches for its food sources by growing outward and retracts
(e) searches for its food sources and grows outward, retracting