Final answer:
c. The seismic gap method identifies areas where strain is accumulating and a future earthquake is expected.
Step-by-step explanation:
Using the seismic gap method, scientists identify a section of a fault as a seismic gap when it has not experienced an earthquake for a prolonged period of time. This indicates that strain is accumulating in that area and a future earthquake is expected.
Therefore, the correct answer is c) It is an area where strain is accumulating and a future earthquake is expected.