Final answer:
J.D.'s basis in his Clampett, Inc. stock after all transactions in 2019 is $5,000.
Step-by-step explanation:
J.D.'s basis in his Clampett, Inc. stock after all transactions in 2019 can be calculated as follows:
Starting basis on January 1, 2019: $45,000
Add: Ordinary income allocated to J.D. from Clampett, Inc. in 2019: $10,000
Subtract: Distribution received by J.D. from Clampett, Inc. in 2019: $50,000
J.D.'s basis in his Clampett, Inc. stock after all transactions in 2019 is therefore:
$45,000 + $10,000 - $50,000 = $5,000
Therefore, the correct answer is c. $5,000.