i think it's <em>a) insometric stretching</em>
hope this helps
<span><span>The more likely answer is Rheumatoid Arthritis.
</span><span>Rheumatoid arthritis is an autoimmune disorder characterized by the painful swelling of the joints. RA affects the lining of the joints, which is the cause of the swelling. RA is also commonly known to occur in smaller joints like those found in the hands and feet. </span></span>
