According to the text, what is the primary method software company Atlassian employs to generate sales?

The company's support team provides customers with helpful information and shows them how to use their products, thereby building relationships that can lead to future business.

The company sends out salespeople to knock on doors and convince other companies to buy from them.

The company uses guerrilla marketing techniques focused on fun, creative interactions with their target audience.

The company invests in large marketing campaigns for TV and radio.