Former Australian captain Allan Border was sometimes known as “Captain Grumpy”. What was his other nickname?

The correct answer is C. AB.

Allan Border was sometimes known as “Captain Grumpy” because of his serious demeanor on the field. However, he was also known by the affectionate nickname “AB”. This nickname was given to him by his teammates and fans because it was a shortened version of his first name.

The other options are incorrect. Abe is not a nickname for Allan Border. Captain Junior is not a nickname for Allan Border. Groucho is not a nickname for Allan Border.