If the FO presses the take over pb constantly...
A.
The CPT is unable to re-activate his sidestick.
B.
The CPT’s sidestick is still active. It will be de-activated after 40 secs.
C.
The CPT can re-activate his sidestick by pressing the take over pb for more than 40 secs.
D.
The CPT can re-activate his sidestick immediately by pressing his take over pb.