In a Young's Double-Slit Experiment,both the Wavelength and the Slit

Multiple Choice

In a Young's double-slit experiment,both the wavelength and the slit separation are increased by 25%.What happens to the distance between two adjacent bright fringes?

A) It decreases by 50%.
B) It increases by 50%.
C) The distance increases by 25% or more.
D) The distance stays the same.