Which entry on a dangerous cargo manifest concerning the classification of a cargo is correct?

Correct Answer: Option C — Class 8

Class 8 refers to corrosive substances under the IMDG Code and 49 CFR hazardous materials regulations. While Class 3 is flammable liquid and Division 2.2 is non-flammable gas, Class 8 is a valid and correct classification entry for a dangerous cargo manifest, making it the accurate choice among the options.