'Rarely, do the managers respond to customers' queries, because they think such requests are annoying. The sentence is an example of ____?

'Rarely, do the managers respond to customers' queries, because they think such requests are annoying. The sentence is an example of ____?

Explanation

The sentence is an example of "inversion."

It places the auxiliary verb "do" before the subject "the managers" to emphasize the rarity of the managers' responses.