Run the gauntlet or the gamut?

Which is correct?
Household applications that could be powered by fuel cells run the ______ from lamps to slow cookers.
a. gamut
b. gauntlet

Explanation:
A gamut is a range; a gauntlet is a glove.

You can run a gantlet, but that’s something else entirely, as Mike Benbow explains:
According to Webster’s and the AP, you throw down a gauntlet, a glove, as in issue a challenge (like the old movies where people slap someone on the face with a glove) and you run a gantlet, a punishment or test (again, think old movies where people run between two lines of men who beat them with clubs.)

Paul Brians’ Common Errors in English Usage also covers gamut vs. gauntlet.

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