**Core Concept**
Anthracoid bacilli are a group of bacteria that resemble *Bacillus anthracis*, the causative agent of anthrax. These bacteria share morphological and biochemical characteristics with *B. anthracis*, but are usually non-pathogenic or less virulent.

**Why the Correct Answer is Right**
The correct answer is related to the identification of anthracoid bacilli. These bacteria typically exhibit a characteristic "boxcar" or "box-like" morphology under the microscope, which is a result of their distinctive cell wall structure. They often produce capsules, but the capsule is usually not as thick or as virulent as that of *B. anthracis*. Additionally, anthracoid bacilli may produce enzymes such as phospholipase D, which is involved in the degradation of phospholipids.

**Why Each Wrong Option is Incorrect**
* **Option A:** Anthracoid bacilli are not typically associated with the formation of anthrax spores, which are a hallmark of *B. anthracis*. This option is incorrect because it implies a level of virulence and spore-forming ability that is not characteristic of anthracoid bacilli.
* **Option B:** While anthracoid bacilli may produce capsules, they are not typically as virulent or pathogenic as *B. anthracis*. This option is incorrect because it exaggerates the virulence and pathogenicity of anthracoid bacilli.
* **Option C:** Anthracoid bacilli are not typically associated with the production of toxins such as lethal factor or edema factor, which are characteristic of *B. anthracis*. This option is incorrect because it implies a level of toxin production that is not characteristic of anthracoid bacilli.

**Clinical Pearl / High-Yield Fact**
It's essential to note that anthracoid bacilli can be confused with *B. anthracis* in the laboratory, but careful examination of their morphology and biochemical characteristics can help to distinguish between the two. Additionally, anthracoid bacilli are often found in soil and can be isolated from environmental samples.

**Correct Answer: C.**