Help me please and thanks
Look at these details from a paragraph about the same topic:
• Watermelons are usually round, but they can also be square or heart-shaped.
• Watermelons can be as small as oranges or as large as pumpkins.
• The insides of watermelons can be red, white, yellow, or orange.
Choose the main idea that ties all the details together.
A. Watermelons are sometimes square or shaped like hearts.
B. Watermelons grow in different sizes, shapes, and colors.
C. Cantaloupes are a type of melon that are orange inside.
D. The outside of a watermelon can be different shades of green.​