Which of the following callable debentures is least likely to be called?
A) 8% maturing in 2024, callable at 100.
B) 6% maturing in 2017, callable at 102.
C) 6% maturing in 2018, callable at 100.
D) 8% maturing in 2018, callable at 102.
Answer: B) 6% maturing in 2017, callable at 102.