What is the main function of structural adaptations?

a. they the organism survive in its environment.

b. they the organism find a mate in other environments.

c. they serve no useful purpose.

d. they provide a home for the organism.

I think the correct answer from the choices listed above is option A. The main function of  structural adaptations is that they  help the organism survive in its environment. These adaptations are physical features of an organism like the bill on a bird or the fur on a bear.

Where is the data? ? and graph