Which statement accurately presents the two Hanafi views about sitting in a moving ship for Fard prayer without an excuse?

Prayer on a Ship and the Complete Tarawih Rules

• Abu Hanifah validates it with full Ruku and Sujud; the two disciples do not without an excuse, and the source calls their view more apparent.
• All jurists in the school say it is always invalid.
• All jurists in the school say gestures alone are sufficient.
• The source discusses only voluntary prayer.