Which of these is a proper way to change the following sentence to passive voice?
Geologists determined that the shine coming from the rocks had a greater frequency than they thought.
(1 point)
Responses
A. The shine coming from the rocks had a greater frequency than geologists thought.
B. The shine coming from the rocks was determined to have a greater frequency than geologists thought.
C. Geologists determined shine coming from the rocks with a greater frequency than they thought.
D. Geologists determined that the shine from the rocks had a greater frequency than they thought.