нужно поставить 4 типа вопросов к следующему предложению three of the indexes are daily averages of the cost-per-share

1. Are three of the indexes daily averages of the cost-per-share of selected stocks in three major economic sectors : industry, transportation and utilities.

2.  Are three of the indexes daily averages of the cost-per-share of selected stocks in three or four major economic sectors?

3. What is daily averages of the cost-per-share of selected stocks in three major economic sectors : industry, transportation and utilities?

4. Three of the indexes are daily averages of the cost-per-share of selected stocks in three major economic sectors, aren\'t they?