You are a project manager working on making your project goals SMART goals. You know that there is a company$-$wide initiative calling for improved customer service. Which of the following project goals is the best representation of a relevant project goal?

$1$ point

Increase manufacturing productivity throughput by $5\%$ by end of year.

Improve employee satisfaction rating from an average score of $65($average$)$ to $85($good$)$ by end of year.

Improve product sales of product X by $8\%$ by the end of the next quarter.

Improve customer satisfaction rating from an average score of $3($average$)$ to $4($good$)$ by end of year.