crontab perl script execution

[JJB]

I have perl script A. which runs 2 other perl scripts B. & C. When A
is run from command line B & C get run. When I put script A in
/etc/corntab I can see that A does in deed get run, but scripts B &
C do not. I looked in /var/log/cron and /var/log/messages for error
messages but there are none. Here are the perl A script statements
which launch B & C scripts
system("/root/bin/A.pl"); and system("/root/bin/B.pl");  As an side
note perl scripts B & C create an sendmail Email if that matters.
Running 4.9.
Any body have any idea why this is happening?