The author views the idea that the pterosaurs became airborne by rising into light winds created by waves as ______.

A．An animal's brain size has little bearing on its ability to master complex behaviors.
B．An animal's appearance is often influenced by environmental requirements and physical capabilities.
C．Animals within a given family group are unlikely to change their appearance dramatically over a period of time.
D．The pterosaurs should be classified as birds, not reptiles.

A．What federal agencies have set percentage goals for the use of minority-owned businesses in public works contracts
B．To which government agencies must businesses awarded federal contracts report their efforts to find minority subcontractors
C．What is one set of conditions under which a small business might find itself financially o- ver-extended
D．How many more minority-owned businesses were there in 1977 than in 1972