question: Hint: Please answer the question and provide the correct option letter, e.g., A, B, C, D, at the end.
  Question: A spaceship of mass $m=4.50 \times 10^3 \mathrm{~kg}$ is in a circular Earth orbit of radius $r=8.00 \times 10^6 \mathrm{~m}$ and period $T_0=118.6 \mathrm{~min}=$ $7.119 \times 10^3 \mathrm{~s}$ when a thruster is fired in the forward direction to decrease the speed to $96.0 \%$ of the original speed. What is the period $T$ of the resulting elliptical orbit (Figure)?
  Choices:
  (A) 4.6
  (B) 6.5
  (C) 6.36
  (D) 8.66