Which of the following statements is true?

  a. The Securities Exchange Act of 1934 regulates intrastate stock offerings made by a company.
  b. The Securities Act of 1933 regulates the subsequent public trading of securities through brokers and markets.
  c. The Securities Exchange Act of 1934 is commonly referred to as blue sky legislation.
  d. The Securities Act of 1933 regulates the initial offering of securities by a company.