Which of the following mixture can be separated by sublimation?

In each pair of compounds, one substance can undergo sublimation.

In salt (NaCl) and ammonium chloride,${\text{NH}}_{\text{4}}\text{C}l$ will undergo sublimation. In camphor and sugar, camphor undergoes sublimation.

In salt and naphthalene, naphthalene will undergo sublimation.