Which of the following is true as the key elements of a wise Crowd based on the material we have covered?

Group of answer choices

$($A$)$ Agreement of opinions: crowd workers tend to agree on everything.

$($B$)$ Independence of opinion: crowd workers generate their opinions independently of those around them.

$($C$)$ Crowd clone: crowd workers have independent but consistent opinions due to the fact that they have the same or similar knowledge and background.

$($D$)$ Diversity of opinion: crowd workers tend to form different opinions based on their diverse and yet private information.

$($E$)$ Decentralization of opinion: crowd workers draw local knowledge to generate their opinions.