"Pre-arm: Throttle (RC3) is not neutral" when arming in Guided mode

Hi all.
I set these params:
RC_OPTIONS = 32, AUTO_OPTIONS = 1.
When the throttle stick is in the middle and the copter wants to arm in the guided mode, the following error is displayed:
“Pre-arm: Throttle (RC3) is not neutral”.
When I hold the throttle stick down, this problem is solved. But I want none of the four main channels of roll, pitch, yaw, and thrust to be ignored in the guided mode.
Does anyone help me out?

There is an option for throttle to respond from midstick on the ground.

Tnx. But what is this option?