The correct answer is b. la
That is because "ropa" which means clothes or clothing is a feminine noun in the Spanish language, so when the first person says that they have to buy clothes, the second one uses "la" because "la" is used for the feminine "ropa". "lo" would be for masculine while "los" would be for masculine plural".
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La estudiante tiene pelo largo y una suéter. L estudiante también es una niña muy inteligente por que califico un cien en su tarea.
By the 20th century<span>, 95% </span>of El Salvador's income<span> derived from coffee exports.</span>
I believe the most senseful answer would be "eran".
