That would be the topic sentence.
If I was given a chance to travel after the quarantine period, I’d go to the Bahamas. I’d not only go there because of their great beaches and oceans but, I’d go there because of the sunny weather and their food. It would be a great vacation or even a summer trip to go on with family and friends.
Explanation:
The sentence should be "The cake smells sweet." or "The cake is smelling sweet." The sentence is missing punctuation and capitalizing the beginning letter in the sentence. I would also prefer the first sentence as it has more consistency.
Unstressed, Unstressed I hope that helps you:)