Final answer:
There are 45 black-footed Mizjigs in Ragon's colony as the question only specifies the number of one-headed Mizjigs that have black feet and does not mention any others.
Step-by-step explanation:
The student has asked a question about counting the number of black-footed Mizjigs in Ragon's colony. The information provided states that there are 45 black-footed, one-headed Mizjigs. Since there is no other information given about Mizjigs with a different number of heads having different colored feet, we assume that all black-footed Mizjigs have one head, and vice versa. Therefore, the number of black-footed Mizjigs in Ragon's colony is 45.Therefore, the correct answer is B. 53.