"You can't bathe in this sea," he said to me, "it's very rough."

• A. e said that I can't bathe in this sea because it's very rough.
• B. e said that you couldn't bathe in the sea if it was very rough.
• C. e said that I couldn't bathe in that sea as it was very rough.
• D. e said that you can't bathe in this sea since it was very rough.