Option 1 -> The passage states that language learning is difficult because it "challenges both your mind and time" -> TRUE.
Option 2 -> The text notes that "some people are simply cognitively better equipped" due to unique brain wiring and stronger connections -> TRUE.
Option 3 -> This is NOT TRUE. The passage argues that children learn easily because of their "super-flexible brains," while for adults, "our more sophisticated grown-up brains come in the way of learning." Maturity is presented as an obstacle, not an essential for ease.
Option 4 -> The text identifies "implicitly" learning as the reason children succeed and notes that adults find it hard because they "simply can't learn 'implicitly' as young children do" -> TRUE.
Option 3 is the correct answer as it contradicts the author's claim that adult sophistication hinders natural acquisition.