Anthrax bacilli differs from anthracoid bacilli by being -: (A) Non-capsulated, (B) Strict aerobe, (C) Non-motile, (D) Haemolytic colonies on blood agar
Answer is C. Anthrax bacillus is capsulated, nonmotile and produce nonhemolytic colony on blood agar.
Both Anthrax bacilli and Anthracoid bacilli are strict aerobe.

Ref: Apurba Sastry’s Essentials of Medical Microbiology 1/e p254, Ananthanarayan 9/e p249