Solution
✅ Correct Option: 2
- challenging : knowledge
This pair does not have the same relationship as "sedative : sleep." Challenging tasks may lead to an increase in knowledge, but it is not a direct cause-effect relationship. A challenge does not directly induce knowledge in the same way a sedative induces sleep. - mnemonic : memory
This pair has the same relationship as "sedative : sleep." A mnemonic is a device or technique used to aid or enhance memory, just as a sedative is used to induce sleep. This is a direct cause-effect relationship. - vocal : eloquence
This pair does not have the same relationship as "sedative : sleep." While being vocal can be associated with eloquence, it is not a direct cause-effect relationship. Being vocal does not necessarily induce eloquence. - dramatic : story
This pair does not have the same relationship as "sedative : sleep." While a story can be dramatic, the term "dramatic" is an adjective that describes a characteristic of the story. It does not induce the story in the same way a sedative induces sleep.