What is the answer to this one?

Describe the basic structure of the atom

Which particles make up the nucleus of an atom? a. protons and electrons b. neutrons and electrons c. protons only d. protons and neutrons e. neutrons only

Sugar will melt ice but is not as effective as salt because salt breaks down into sodium and chloride ions so when one molecule of salt dissolves into the ice, it will add two components to the solution which provide more interference in preventing the water molecules from freezing.