Final answer:
The question on how mosquitoes detect their next blood meal is a A)behavioral question, focusing on the actions and reactions of these insects in their environment.
Step-by-step explanation:
When studying mosquitoes and how they detect their next blood meal, this question can be categorized as a OPTION A)behavioral question.
The focus on detection and response to stimuli implies an interest in the behaviors exhibited by mosquitoes in selecting their food sources. This falls under the study of animal behavior, which overlaps with ethology and behavioral ecology, and is distinct from physiological, molecular, ecological, or developmental studies.