Question

as animation technology developed, the cost of producing an animation ___, which meant that people could spend more money on making animations ___.
decreased; longer
increased; shorter
decreased; with sound
increased; without dialogue

Explanation:

When animation technology develops, it usually becomes more efficient, so the cost of production would decrease. With lower production costs, more money can be allocated to other aspects. Adding sound to animations is a common improvement that would be feasible with more available funds. Longer animations would not necessarily be the direct result (as it depends on creative decisions), and increased cost doesn't align with technological development. Animations without dialogue is not a logical outcome of cost - related changes in the context of technological progress.

Answer:

decreased; with sound