Which one among the following is not a subline solid?

Which one among the following is not a subline solid?

مندرجہ ذیل میں سے کون سی سب لائن ٹھوس نہیں ہے؟
Explanation

Dry ice (solid carbon dioxide) is an example of a solid that undergoes sublimation.

Camphor, naphthalene, and ammonium chloride are sublime materials.