Answer:
Correct option is A.
Explanation:
As stated in general statement, precaution is better than cure.
Similarly, as per Technician A the tools has to be inspected before using them. Technician B states that the tools shall be inspected along with following the guidelines as by the manufacturers and producers.
Thus, on his part the Technician B is also right but, it can happen that there is a fault in procedure, which is not identifiable if method followed by Technician B.
Correct option is A.