Final answer:
Jake must recognize all $60,000 of the S corporation's income on his personal tax return for 2015, regardless of the actual cash distribution received.
Step-by-step explanation:
Jake is the sole shareholder of an S corporation that earned $60,000 in 2015. As an S corporation, the income, deductions, and credits pass through to shareholders and are taxed at their individual tax rates, regardless of whether the income is distributed. Therefore, Jake must recognize $60,000 of income from the S corporation in 2015, which is the total income earned by the corporation.