A.
Even when scrounging for cinders you had to have your wits about you and shift from place to place to avoid those mischievous boys who banded together to collect cinders too.
B.
Scrounging for cinders, you also had to do with wits and changed from palce to place to prevent the bully from the wild boys.
C.
Scrounging for cinders, you also had to do with wits and changed from palce to place to protect yourself from the bully from the wild boys.
D.
Even while you were scrounging for cinders, you had to have your wits about you and change from place to place to avoid those bad boys who often gatered to pick the cinders.