The correct answer is: Only I and II are implicit.
The statement “If you are a mechanical engineer, we want you as our supervisor.” is an advertisement by Company X. This statement implies that Company X is looking for a mechanical engineer to be their supervisor. It also implies that Company X believes that mechanical engineers are good supervisors. However, the statement does not imply that mechanical engineers are expected to be better performers by Company X, nor does it imply that mechanical engineers may get attracted and apply to Company X.
Here is a more detailed explanation of each assumption:
- Assumption I: Mechanical engineers are expected to be better performers by Company X.
This assumption is not implicit in the statement. The statement only says that Company X wants a mechanical engineer to be their supervisor. It does not say that Company X believes that mechanical engineers are better performers than other types of engineers.
- Assumption II: The Company X needs supervisors.
This assumption is implicit in the statement. The statement says that Company X wants a mechanical engineer to be their supervisor. This implies that Company X needs a supervisor.
- Assumption III: Mechanical engineers may get attracted and apply to Company X.
This assumption is not implicit in the statement. The statement only says that Company X wants a mechanical engineer to be their supervisor. It does not say that Company X believes that mechanical engineers will be attracted to their company or that they will apply for the job.