Statement: In spite of poor services, the commuters have not complained against it.
- Generally people do not tolerate poor services.
- Complaints sometimes improve services.
Only I is implicit.
Only II is implicit.
Either I or II is implicit.
Neither I nor II is implicit.
I is implicit because the tone of the statement is that something unusual has happened. II is not implicit because complaints are a sign of poor service, they are not a guarantee of getting improved services. Improving a service is dependent on many factors like availability of budgetary funds.