Final answer:
The detail that best reflects how living in the Taliban-ruled Swat Valley affected Malala is restricted educational opportunities. Therefore, the answer is b) Restricted educational opportunities.
Step-by-step explanation:
The detail that best reflects how living in the Taliban-ruled Swat Valley affected Malala is b) Restricted educational opportunities. Living under the Taliban's rule, the education for girls was severely restricted. The Taliban banned girls from attending school, which greatly affected Malala's educational opportunities.
Despite the restrictions, Malala was determined to receive an education and became an advocate for girls' education. Her activism and advocacy led to her being targeted by the Taliban, which ultimately resulted in an attack on her, further highlighting the impact of living in the Taliban-ruled Swat Valley.
Therefore, the answer is b) Restricted educational opportunities.