Final answer:
Venus indeed always appears close to the sunrise or sunset in Copernicus's heliocentric model due to its orbit inside of Earth's, making the statement true.
Step-by-step explanation:
According to Copernicus's heliocentric model, Venus will always appear close to the sunrise or sunset, which is true. This is because Venus orbits the Sun inside the Earth's orbit, so it is seen in the sky within a limited angular distance from the Sun. This phenomenon is known as the 'greatest elongation' of Venus, and it is the farthest Venus can get from the Sun in the sky as observed from Earth. When it reaches its greatest elongation east, it appears as an 'evening star' after sunset. Conversely, when it reaches its greatest elongation west, it appears as a 'morning star' before sunrise. Thus, you'll never see Venus in the middle of the night sky.