Read the extract given below and answer the questions that follow:
''You are well'', Sadao agreed. He lowered his voice. ''You are so well that I think if I put my boat on the shore tonight, with food and extra clothing in it, you might be able to row to that little island not far from the coast. It is so near the coast that it has not been worth fortifying. Nobody lives on it because in storm it is submerged. But this is not the season of storm. You could live there until you saw a Korean fishing boat pass by. They pass quite near the island because the water is many fathoms deep there. The young man stared at him, slowly comprehending. 'Do I have to ? he asked.'
''I think so'', '' Sadao said gently. ''you understand - it is not hidden that you are here.''
"But this is not the season of storm". Dr. Sadao tries to

Options

A. explain the situation
B. assure him of safety
C. educate him on climate
D. display his knowledge