Concept:A fruit is identified by the number and position of its scars, which differ from those of a seed.
Explanation:The outer wall of a fruit develops from the ovary after fertilisation.
During growth, a fruit carries two characteristic scars.
One scar marks the point where the fruit was joined to the stalk.
The other scar is at the tip, left when the style fell off.
A seed, however, shows only one main scar called the hilum.
The hilum is the point where the seed was attached inside the fruit.
Hence, the presence of two scars on a fruit is the main difference from a seed, which has one.
Answer:B. has two scars while a seed has one.