Which is more correct: <br/><br/>Atherosclerosis is a condition <u>in which</u> an artery wall thickens as the result of a build-up of fatty materials such as cholesterol. <br/> <br/>Or <br/> <br/>Atherosclerosis is a condition <u>wherein</u> an artery wall thickens as the result of a build-up of fatty materials such as cholesterol.