Which of the following decisions are involved with constructing an investment strategy?
1) What asset classes should be considered for investment?
2) What policy weights should be assigned to each eligible asset class?
3) What are the allowable allocation ranges based on policy weights?
4) What specific securities or funds should be purchased for the portfolio? 1 and 4 only. 1, 2, 3 and 4. 2, 3 and 4. 1 and 2 only.