Option (d) is correct.

According to the passage, default options have extra nudging power because consumers may feel, rightly or wrongly, that default options come with an implicit endorsement from the default setter, such as the employer, government, or TV scheduler. In many contexts, when an option is designated as the default, it attracts a large market share because consumers perceive it as being endorsed or recommended by the entity that set the default.

विकल्प (d) सही है।

डिफाल्ट विकल्प के सशक्त बनने की स्थिति तब होती है, जब डिफाल्ट निर्धारक उनका अनुमोदन करते हैं।