To answer this question, we need to understand the concept of density. Density is the mass of a substance per unit volume. The substance with a higher density will be heavier.
Option A) Gold - This option is correct because gold has a higher density than silver. Gold has a density of 19.3 g/cm³, which makes it heavier than silver.
Option B) Silver - This option is incorrect because silver has a lower density than gold. Silver has a density of 10.5 g/cm³, which is lower than gold.
Option C) None - This option is incorrect because gold is heavier than silver.
Option D) All - This option is incorrect because only gold is heavier than silver.
The correct answer is A) Gold. This option is correct because gold has a higher density than silver, making it heavier.