Which of the following illustrates an increase in human capital?(1 point) Responses An engineer designs a new tool that cuts production costs in half across several industries. An engineer designs a new tool that cuts production costs in half across several industries. A factory manager purchases additional machinery to automate many of the tasks her employees are currently performing. A factory manager purchases additional machinery to automate many of the tasks her employees are currently performing. An applied mathematician develops an algorithm that makes supply chains more efficient. An applied mathematician develops an algorithm that makes supply chains more efficient. A graphic designer attends a week-long seminar and learns advanced skills she can apply to her work.

A graphic designer attends a week-long seminar and learns advanced skills she can apply to her work.