You've been tasked by your senior management to evaluate various methods for expanding the boundaries of the firm $($not geographically$).$ As you begin your analysis, you find the following examples. Determine which kind of corporate strategy each example represents.

Group of answer choices

Related diversification

The Cheesecake Factory expanding its business to offer catering services, leveraging its existing restaurant operations to enter a related field.

Unrelated diversification

$3$M$,$ originally known for mining, expanding into various unrelated industries such as healthcare, consumer goods, and industrial products.

Vertical integration

Schweitzer$-$Mauduit International purchasing Neenah and incorporating its resources into the original company to expand market reach and combine expertise.

Strategic alliance

Spotify and Hulu collaborating to offer a bundled subscription service, sharing resources to provide more value to customers.

Acquisition

Tesla acquiring SolarCity for its solar panel supply chain and to offer a more clean energy solution.