Under the Securities Exchange Act of 1934, a market maker is:
A) a marketplace to bring together buyers and sellers of securities.
B) a security in high demand.
C) any person who buys and sells securities for his own account or for the accounts of others.
D) a dealer who holds itself out as being ready at all times to buy or sell shares of a specified security at a quoted price.
Answer: D) a dealer who holds itself out as being ready at all times to buy or sell shares of a specified security at a quoted price.