My sentence is true because there are scientific journals that validate the claim. Furthermore, it has been proven through the experience of the many people living with heart failure.
This justifies what answer for what question? Q & A:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
Is the following a factual statement?
"The cause of Heart failure is the heart not pumping blood accordingly."
Options:
- yes
- no
yes