A Researcher States in an Article That a New Experimental

A researcher states in an article that a new experimental treatment, trialed in the outpatient setting in a tri-physician practice in northern Oregon, produces better outcomes than the control treatment for patients with COPD. The p-value given is p < 0.05. What does this mean?

A) There is better than a 95% chance that at the research site mentioned in the article, the experimental treatment really does produce better outcomes for patients with COPd.
B) The probability of error is 95%.
C) There is very little chance that the intervention is effective-less than a 5% chance, in fact.
D) There is better than a 95% chance that the experimental treatment will produce better outcomes for all COPD patients.
E) There is less than a 5% chance that the researcher has reached this conclusion in error.