Why are there no 'B' batteries ? Single 'A' s ?   Plenty of  'AAA',  AA', 'C', and  'D' small batteries, guess they skipped 'B' and 'A' ?
Wife bought me a Moultrie Game Camera, and it needs 6 'C' batteries, so off to the store I go .Just got me thinking.
Could look it up on "WIKIPEDIA", but you guys are smarter.