challenge: What is a key difference between the 1978 and 1998 Scotland Acts?
  
  A. The 1978 act devolves a wide range of powers to Scotland, while the 1998 act reserves most powers to Westminster
  B. The number of Scottish MPs in Westminster
  C. The 1978 act reserves a limited number of powers to Westminster, while the 1998 act devolves a wide range of powers to Scotland
  D. The power to tax and spend is only granted in 1978
  Answer: 