QUESTION 1) After the pandemic, schools and colleges are opening up all over the country. They are facing a scenario based on this situation. Write the answer of the following scenario-based question according to the marks. a) Scenario: Brac currently has an abundance of students compared to the seating space available on campus, which is not suitable for the pandemic. So lets say Brac wants to establish a fingerprint based access granting system at every entry. They would like to allow students with odd numbered IDs access to classes on one day and students with even numbered IDs on the other. Can you suggest to them how they can establish a secured fingerprint sensor by explaining to them the working of that sensor and connecting it with Arduino or Raspberry Pi? You must explain the data flow of the Sensor and a processing unit (Arduino / Raspberry Pi)? Also, explain how the system would work in your own words, this question is open to interpretation and answers must not match with other students. (5 Marks) b) Identify the main difference between an inductive and capacitive. proximity sensor