A.Option C

B.Option A

C.Option D

D.Option E

E.Option F

F.Option B

A..map(Employee::getLocality)
.distinct()
.count();

B..filter(Employee::getLocality)
.distinct()
.count();

C..map(e -> e.getLocality())
.collect(Collectors.toSet())
.count();

D.map(e -> e.getLocality())
.count();

A.jmod describe

B.jar --show-module-resolution

C.jdeps --list-deps

D.java Hello.java

E.java --show-module-resolution

A.3

B.0

C.1

D.4

E.2

A.D does not define any method.

B.D extends more than one interface.

C.D inherits a() from B and C but the return types are incompatible.

D.D inherits a() only from C.