Which of these is a proper way to change the following sentence to passive voice?

Question

Geologists determined that the shine coming from the rocks had a greater frequency than they thought.

(1 point)

Geologists determined shine coming from the rocks with a greater frequency than they thought.

The shine coming from the rocks was determined to have a greater frequency than geologists thought.

Geologists determined that the shine from the rocks had a greater frequency than they thought.

The shine coming from the rocks had a greater frequency than geologists thought.

Answer 1

The proper way to change the sentence to passive voice is:

The shine coming from the rocks was determined to have a greater frequency than geologists thought.