When attempting to build your project, what might the following error indicate?
Conversion to Dalvik format filed: Unable to execute dex: method ID not in [0, 0xffff]: 65536
a. You have included incorect format information in your build.gradle file.
b. You have added more than 20 dependencies to your build.gradle.
c. You have exceeded the total number of methods that can be referenced within a single DEX file.
d. You have a NullPointerException in your code.
