When utilizing a decision tree to make a decision, an analyst must:Question 10 options:a)start at the middle of the tree and work both upward and downward simultaneously.b)start at the most distant point in time and work backward to Time 0.c)begin at Time 0 and work toward the most distant point in time.d)start at the top of the tree and work vertically downward to the very bottom.e)concentrate only on the limbs with the highest probability of occurrence levels.