Regarding self-efficacy, which of the following statements is FALSE?

Regarding self-efficacy, which of the following statements is FALSE?
 
  a. People with higher levels of self-efficacy are more likely to succeed in the tasks that they undertake. b. Self-efficacy can play a role in the success of dieting and smoking cessation.
  c. Successful experiences boost self-efficacy in children but not in adults.
  d. Compared to people with low self-efficacy, people with high self-efficacy are more likely to persevere when facing challenges.
  e. People with low self-efficacy are easily convinced of the futility of effort in the face of difficulties.