A. I can see: only one thing the old lighthouse.
B. I can see only one thing the old lighthouse.
C. I can see only one thing: the old lighthouse.
D. I can see only one thing the old, lighthouse.
C. I can see only one thing: the old lighthouse.
A. I can see: only one thing the old lighthouse.
B. I can see only one thing the old lighthouse.
C. I can see only one thing: the old lighthouse.
D. I can see only one thing the old, lighthouse.