Which results from multiplying the six trigonometric functions?

For an angle where all six trigonometric functions are defined, multiply sin θ, cos θ, tan θ, csc θ, sec θ, and cot θ. Since tan θ = sin θ/cos θ, csc θ = 1/sin θ, sec θ = 1/cos θ, and cot θ = cos θ/sin θ, the factors cancel to give 1. The correct choice is 1.

AI-written and checked against the verified answer.