The correct answer would be - Analyze the results and change the experimental methods to retest the hypotheses in a different way.
Explanation:
In a scientific investigation or experiment, if there is an unexpected result during testing a hypothesis. A Scientist must analyze the procedure and result to find the possible explanation or errors that led to a particular result.
After analyzing and finding what must have happened scientists need to do changes in the experiment setting or method and retest the hypothesis in a different way to a better understanding of the topic.
The point of contact between the nerve and the muscle fibers it stimulates is called a: Neuromuscular junction. A single motor neuron with all the muscle cells it innervates is called a: Motor unit.