Convex lens focus a real, point sized image at focus, the object is placed

Q. Convex lens focus a real, point sized image at focus, the object is placed
A. At focus
B. Between F and 2F
C. At infinity
D. At 2F
Answer: At infinity

A. At focus
B. Between F and 2F
C. At infinity
D. At 2F
Answer: At infinity