<em>Yes and nothing much would change—the discoveries he made and theories he devised would have materialized anyway sooner or later. </em>
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<em>Hope this helps! Have an amazing rest of your day :)</em>
Option A. The rest doesn't make sense.
<span>Assuming that this is referring to the same list of options that was posted before with this question, <span>the correct response would be "buying on a margin", since stock brokers today and in the past have relied on credit to make offers more lucrative. </span></span>