Select the option that expresses the given sentence in indirect speech.
The professor said to the media persons, “From our research we have come to the conclusion that there is life on that planet.”

The professor said to the media persons from our research you had come to the conclusion that there was life on that planet.

The professor told to the media persons that from your research you have come to the conclusion that there is life on that planet.

The professor said to the media persons that from their research they had come to the conclusion that there was life on that planet.

The professor informed the media persons that from our research we have come to the conclusion that there had been life on that planet.