Beakers W,X,Y,and Z Contain Either Aqueous NaOH,KOH,LiOH,or NH₄OH

Multiple Choice

Beakers W,X,Y,and Z contain either aqueous NaOH,KOH,LiOH,or NH₄OH.Which beaker contains aqueous ammonia if the light bulb glows brightly when testing the conductivity of beakers W,X,and Z?

A) beaker W
B) beaker X
C) beaker Y
D) beaker Z
E) all of the above