Final answer:
D. Point the firearm in the safest direction possible.
Rule #2 from the Rules for Kids regarding firearm safety is likely 'Point the firearm in the safest direction possible', emphasizing accident prevention.
Step-by-step explanation:
Rule #2 from the Rules for Kids likely refers to a specific set of safety instructions, which could be related to various activities such as lab work, handling equipment or in this context, firearm safety. Based on the options provided, the most plausible answer would be D. Point the firearm in the safest direction possible. This is a fundamental safety guideline in handling firearms, aiming to minimize the risk of accidental harm should the firearm discharge. It is crucial for children to understand and adhere to this rule, along with all other firearm safety measures, to prevent accidents.