What Were the Findings of Vroom and Jago's Theory About

What were the findings of Vroom and Jago's theory about decision making when followers have sufficient information or knowledge?

A) Joint decision making is more effective when timing is critical but autocratic decision making is more appropriate.
B) Neither joint decision nor autocratic decision making are appropriate or effective.
C) Joint decision making is more appropriate than autocratic decision making,but autocratic decision making is more effective when timing is critical.
D) Joint decision making is more appropriate than autocratic decision making especially when the timing is critical.