We Can't Detect Stellar Parallax with Naked-Eye Observations

Multiple Choice

We can't detect stellar parallax with naked-eye observations. Which of the following would make parallax easier to observe?

A) increasing the size of Earth's orbit
B) speeding up Earth's orbital motion
C) slowing down Earth's orbital motion
D) Speeding up the precession of Earth's axis
E) getting away from streetlights