Question

add the words that complete the thought in the underlined sentence.
the updated hayden has an 87 - foot dome and all new equipment, including the fourth model of the zeiss projector, the mark ix. this high - tech projector casts stunning and accurate images of the sun, moon, planets, and 9,100 stars.
this high - tech projector casts stunning and accurate images of the sun, moon, planets, and 9,100 stars
options: onto the new dome; onto the new equipment; onto the mark ix; onto the fourth model

Explanation:

The Hayden has an 87 - foot dome, and the projector is part of the updated Hayden with new equipment. The projector's function is to cast images onto the dome (the surface where such astronomical images would be projected for viewing). The other options (new equipment, Mark IX, fourth model) don't make sense as the target for projecting these celestial images.

Answer:

A. onto the new dome