Which one of the following events is an unsystematic or diversifiable risk? OUAW called for a strike at Hamtramck GM Plant Federal Reserve Board increased interest rates by more than 0.5% CPI or Inflation rate rose by 5.0%--more than what was expected The value of US$ rises against Euro Question 6 Choose the most diversified portfolio: Two stocks, with a correlation of +0.0 Two stocks with a correlation of -0.5 Fifty randomly selected stocks, correlations not estimated O Fifty stocks--all from the same stable sector: utilities