Question 1 (12 points) Tan Co.'s bookkeeper has understated the closing stock amount of $870 as $780. The unadjusted gross profit for the accounting year ended 30 September 2021 are $169,150. What is the amount of corrected gross profit for the year to 30 September 2021? 1) $168,970 2) $169,330 B 3) $169,060 4) $169,240