Directions: Choose the correctly spelt word that can substitute the highlighted word in the sentence below. If no substitution is needed, select Option "No replacement required".

The researcher's observation was not garmane to the experiment being conducted and distracted the team.

The correct option is germane.

Step-by-step explanation:
1. Analyze the sentence context: The sentence states that the researcher's observation was distracted and not relevant to the experiment being conducted.
2. Identify the misspelled word: The highlighted word "garmane" is an incorrect spelling.
3. Determine the correct spelling and meaning: The word that means relevant, pertinent, or appropriate to a subject under consideration is spelled germane.
4. Evaluate the options:
• gerrmane: Incorrect due to the double 'r'.
• germane: Correct spelling.
• No replacement required: Incorrect since "garmane" is a spelling error.
• garmine: Incorrect spelling.

Thus, replacing "garmane" with germane makes the sentence grammatically correct and meaningful.