Assertion: By showing frightening pictures of dental cavities, a positive attitude can be strengthened towards dental care.

Reasoning: Research has found that fear sometimes works well in convincing people but if a message generates too much fear, it turns off the receiver and has little persuasive effect.

Assertion (A) is not true but Reasoning (R) is correct.

Attitudes can undergo a change based on the direction of presented information, either aligning with it or opposing it. For instance, the use of posters emphasizing the significance of brushing one's teeth can reinforce a positive attitude towards dental care. However, if individuals are exposed to alarming images depicting dental cavities, they may develop skepticism towards the pictures and, as a result, become less positive about dental care. Research has indicated that fear can be effective in persuading people to take action. However, if a message induces excessive fear, it can overwhelm the recipient and diminish its persuasive impact. In other words, if a message generates too much fear, it turns off the receiver and has little persuasive effect.