How did Carol's dad feel about her tattoo?

Carol's dad drew the line at her getting a tattoo, indicating that he had strong feelings against the idea. This suggests that he likely disapproved of tattoos for personal, cultural, or generational reasons and believed that they were not suitable for his daughter. His reaction demonstrates a clear boundary regarding what he finds acceptable for Carol. This choice reflects a more significant emotional response than the other options, which either indicate neutrality, general acceptance, or personal preferences about tattoos that do not directly address his feelings about Carol's specific tattoo.