ltiple-choice answer, the <em class="parameter"><code>Answer</code></em> element
			contains a <em class="parameter"><code>SelectionIdentifier</code></em> element for each option the Worker selected.
			If the Worker did not make any selections, the <em class="parameter"><code>Answer</code></em> will contain zero
				<em class="parameter"><code>SelectionIdentifier</code></em> elements. The identifier corresponds to the
				<em class="parameter"><code>SelectionIdentifier</code></em> for the selection provide