Great question
INFO given - for a successful launch either get shelf space or get new people to try it.
to get shelf space you CAN try trade journals promotion or others and to get new people to try it you CAN do tv ads or press ads.
D) is the only situation which will happen for certain > no shelf space means only option is people seeking the product and for that only two actions can be taken if tv ads are TOO expensive only other option is press ads.
NOTE- other options play with concepts like main requirements that are prominent shelf space and people seeking out and smaller requirements to fulfill the main requirements.