quiz 4d4D Quick Quiz (continued) 2 What is the difference between freezing and solidifying? A Freezing only happens at very cold temperatures. B Solidifying is the opposite of freezing. C SolidifyingComparison of the SNAP 4Dx Plus Test and the Abaxis VetScan Canine Anaplasma Rapid test. Comparison of the SNAP 4Dx Plus Test and the Abaxis VetScan Canine Ehrlichia Rapid Test.