Answer:
Option A, Oak
Explanation:
Spruce is a kind of pine tree. The southern forest regions are swamps areas with alluvial soils and thus they inhabitate several different kind of plant and tree species such as - tupelo, black gums, hackberry, honeyloctus, oak trees, red and silver maples, willows, bay, mongolias etc.
Hence, among all the given options, oaks are the only species that are found in the south of spruce
Hence, option A is correct
