Tissue covers the outer surface of herbaceous or soft-stemmed plants

The correct answer would be dermal tissue.

Explanation:

The dermal tissue protects the soft tissues of herbaceous plants and soft-stemmed plants and regulates interactions with the surroundings of the plants.

It is a very thin layer that secretes a waxy layer called the cuticle that prevents water loss from the plants. It has stomata that help in the gaseous exchange of the atmosphere. It arises from the primary meristematic tissues.

Thus, the correct answer would be dermis tissue.