Karen knows that trees use energy from the sun to make food. she wants to plant several trees in her backyard, but she is worried that she will use up the sun's energy. is karen correct?

Karen is NOT correct. This is because the sun's energy is a renewable resource. This means that its  use is sustainable hence it is a substance of economic value that can be replaced or replenished in the same or less amount of time as it takes to draw the supply down. Though the sun is a finite resource,  it cannot be depleted within human timescale.

the answer is d (apex) good luck : ))