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although the number of steps in the scientific method depends on how you learned it, the sequence is always the same. put the following in order:
propose a hypothesis.
analyze the data.
conduct an experiment.
draw conclusions.

The correct sequential order of steps involved in scientific method is:

1. Proposal of hypothesis.

2. Experimenting the proposed hypothesis

3. Analysing the obtained data.

4. Drawing conclusion.

Explanation:

The scientific method of study is conducted in series of steps which follows a sequential order as shown below:

The first step in scientific method is observation. The person must make proper observation related to his study.He must then set a question for his study for which he must find answer.Thirdly he must try to find answer to his query through proper research and analysis.After completion of research, he must set hypothesis based upon his research.In order to get practical result, experiment must be conducted. Based upon the experimented process the learner must either accept or reject his hypothesis.The final step is to obtain the conclusion.

Since i don't know the options you have i'm just going to explain what non traumatic brain injury is.

When we call a brain injury traumatic it may include open head injuries(like a gunshot wound) or or closed head injuries (like blunt trauma).
On the other hand, non-traumatic brain injuries may include those caused by strokes, nontraumatic hemorrhage, tumor, infectious diseases, hypoxic injuries, toxic exposure blunt trauma. Basically the non-traumatic injury doesn't depend of something outside the body.