It's A) he was left a large sum of money by a family member!
<em>{°+</em><em>Hey sisters its Alejamtz555 here!</em><em>+°}</em>
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{Answer}
<em><u>C.</u></em><em> </em><u><em>Assessing your current level of fitness.</em></u>
<em>Hope this helps! <3</em>
The subordinate clause is "unprotected animals got swept out" and the main clause is because "when waves rush in". hope u get it right ;)