Step 1: Read the two statements.
Statement I is about how aspirin works. Statement II is about how iproniazid works. We judge each one true or false, then pick the right combination.
Step 2: Examine statement I (aspirin).
Aspirin blocks the enzyme cyclooxygenase. This lowers the making of prostaglandins.
Step 3: Link prostaglandins to inflammation.
Prostaglandins are chemicals that cause inflammation. Since aspirin reduces them, it stops the chemicals that trigger inflammation. So statement I is correct.
Step 4: Examine statement II (iproniazid).
Iproniazid is a monoamine oxidase inhibitor (MAOI). Monoamine oxidase is the enzyme that breaks down neurotransmitters such as noradrenaline.
Step 5: Reason out statement II.
Since iproniazid blocks this enzyme, the enzyme that degrades noradrenaline is inhibited. So statement II is also correct.
Step 6: Combine the verdicts.
Both statements are correct. \[ \boxed{\text{Both statements I and II are correct}} \]