Answer: The first example
Explanation: “The modern automobile is becoming an adult” is an example of a metaphor. This is because the automobile is being compared to a human growing and becoming an adult and not needing any support because the automobile is evolving / growing into something more advanced than it used to be a while ago as new technologies arise.
Wage slavery is a term used to draw an analogy between slavery and wage labor by focusing on similarities between owning and renting a person. It is usually used to refer to a situation where a person's livelihood depends on wages or a salary, especially when the dependence is total and immediate.