A 2.0 mL sample of a colorless solution, when treated with a few drops of 2 M hydrochloric acid, for — Descriptive Chemistry Chemistry Question

A 2.0 mL sample of a colorless solution, when treated with a few drops of 2 M hydrochloric acid, forms a white precipitate which dissolves when the solution is heated to boiling. The original solution could have contained which of the following cations?
I. 0.1 M Ag⁺
II. 0.1 M Pb²⁺