Test Question #40

[golfdesigner]

I am going thru NFHS Test and am looking at #40 and having tough time with it..at least finding a rule reference that would clarify..
I say T
"#40 - Ball becomes dead when B1 touches A1's ft try while the ball is on upward flight outside the cylinder.."

first, ball would not become dead because B1 crossed lane line before try hit rim or ended, violation would only be penalized if try missed..2004-06 handbook shows ft try ends when the attempt touches the floor or any player, so I would say True because ball doesn't become dead until it is touched..that is what causes ball to become dead..now I want to find rule reference that really covers this situation..

Or am I wrong on the T/F?