It Can Be Said That the "Trade and Commerce" Power

It can be said that the "trade and commerce" power of the federal government

A) allows the federal government to regulate any area of business activity.
B) never permits the federal government to regulate transactions taking place exclusively within a province.
C) permits the federal government to regulate all insurance contracts.
D) potentially conflicts with the provincial power over "property and civil rights."
E) permits the federal government to regulate local works and undertakings.