Answer :

Sure! Let's take a closer look at the options given for the weight of a heart:

1. 4-6 oz.
2. 9-12 oz.
3. 16-20 oz.
4. 13-15 oz.

When we consider the typical weight range for an adult human heart, the most accurate range among these options is 9-12 ounces. This is because, on average, an adult human heart weighs approximately within this range.

Therefore, the best choice from these options would be 9-12 oz. This is the range that aligns most closely with the typical weight of an adult heart.