Select the correct Active/Passive form of the given sentence.

“How beautiful the waterfall is!” said Rohan.

Rohan exclaimed with joy that the waterfall was very beautiful.

The correct active/passive form of the given sentence is Rohan exclaimed with joy that the waterfall was very beautiful.

The sentence is in the simple present tense, which is used to describe an action that happens regularly or now. The active voice of the sentence is formed by putting the subject of the sentence before the verb and removing the word "by." In this case, the subject of the sentence is "Rohan" and the verb is "exclaim." So, the active form of the sentence is "Rohan exclaimed with joy that the waterfall was very beautiful."

The other options are incorrect because:

• Rohan exclaimed with joy how beautiful the waterfall is!” This is the original sentence in the active voice.
• Rohan exclaimed with joy that the waterfall is very beautiful.” This is incorrect because the word "is" is in the present tense, but the sentence is about an action that is happening now.
• Rohan exclaimed with joy that the waterfall was very beautiful.” This is incorrect because the word "was" is in the past tense, but the sentence is about an action that is happening now.
• Rohan exclaimed with joy that it was a very beautiful waterfall.” This is incorrect because the word "it" refers to the waterfall, but the waterfall is already mentioned in the sentence.