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