The correct answer is B. Consciously focusing on one aspect of a problem at a time.
Step-by-step explanation
A sequential process is a method of solving problems or analyzing information based on consciously performing one specific activity after another in a pre-established order to obtain the expected result. An example of this can be a study plan for an exam: First, you must know what topics are going to be addressed in the exam, second, you must look for specific information to solve the exam properly, third you must organize the information from the general to the specific for a better understanding, fourthly, mock exams should be done, and finally, the exam is presented.
According to the above, the correct answer is B. Consciously focusing on one aspect of a problem at a time.