Answer:
C. Border area
Explanation:
Because or the semitropical climate at the border areas like Texas cultivation of citrus and vegetables is easy. The valley of Rio grande and the Winter garden in South Texas are the major producers of these two crops
<span>Difficult to determine the absolute age of the fossil, because radiometric dating of sedimentary rock is much, much more difficult than that of igneous rock. </span>
It might be a gulf. ...................................