During COVID-19, the closing of international borders led to stock-outs of supplies for import assemblers. As a result, the import assemblers could not see their products even when the domestic economy started reopening. Such firms risked their survival mainly because of what reasons? a. loss of revenues due to failure of inbound supplies b. loss of revenue abroad due to failure of inbound supplies c. increase of market share at home to firms that are able to continue to meet domestic demand during the pandemic d. omnichannels