Answer:
idiom.
Explanation:
The phrase to smell a rat is an idiom that dates back to the 1500s. To smell a rat means to become suspicious that something in a given situation is not quite right, to believe that someone is attempting to trick you or that the circumstances are not quite right.
March 26, 1969 United States
The sentence "<em>Bob plays guitar in his spare time"</em> represents a single sentence.
<h3>What is a simple sentence?</h3>
This refers to an independent clause which conveys a single and complete thought.
Hence, the <em>Bob plays guitar in his spare time"</em> represents a single sentence because its conveys a single and complete thought.
Therefore, the Option B is correct.
Read more about simple sentence
<em>brainly.com/question/897886</em>
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sorry I cant help but I hope you find someone soon! have a great day my friend!