If the closing balance of receivables is less than the opening balance for a month then which one is true out of the following.?

<p><strong>(a)Collections&gt;Current Purchases, </strong></p> <p><strong>(b)Collections&gt;Current Sales,</strong></p> <p><strong>(c)Collections&lt;Current Purchases, </strong></p> <p><strong>(d) Collections &lt; Current Sales</strong></p>