You want to estimate the diameter of a very small circular pinhole that you've made in a piece of aluminum foil. To do so, you shine a red laser pointer \((\lambda=632 \mathrm{~nm})\) at the hole and observe the diffraction pattern on a screen \(3.5 \mathrm{~m}\) behind the foil. You measure the width of the central maximum to be \(15 \mathrm{~mm}\). What is the diameter of the hole?

A. \(0.18 \mathrm{~mm}\)

\(\begin{array}{lll}\text { B. } 0.29 \mathrm{~mm} & \text { C. } 0.36 \mathrm{~mm}\end{array}\)

D. \(1.1 \mathrm{~mm}\)