Answer:
B
Explanation:
The changed protein connects differently, but its function doesn't change.
Don't know if you typed this too fast spelt something wrong, so I'm not sure, sorry.
Atrial fibrillations the problem of irregular heartbeats, due to which clots can form inside the veins, and may lead to stroke, and ultimately, heart failure. An anticoagulant is given to such patients, to decrease the chances of occurrence of a heart attack due to blood clot formation.
