. . . which he'd quite understand

[shootingstar]

He described his impoverished digs, his struggle not coming from an undertaking background, his desire to qualify. How William was going to help him and had mentioned there was a spare bed in his room, and didn't think they'd mind another lodger. He knew this was presumptuous, but after spending such a miserable Christmas, he thought he'd got nothing to lose. The worst that could happen was that they'd say no - which he'd quite understand.

(From A Terrible Kindness by Jo Browning Wroe, Part III Family Business, chapter 38)

What does "quite" mean in this context? Does it mean "a little, moderately but not very" or does it mean "very, totally or completely"?

 

[Rover_KE]

completely/totally