Option 1: Rose - Rose plants can be multiplied by cuttings. By taking a stem cutting from a healthy rose plant and planting it in soil or water, roots will develop, and a new plant will grow.

Option 2: Bryophyllum - Bryophyllum plants can be easily multiplied by cuttings. The leaves of Bryophyllum have the ability to produce new plants when they are placed on soil or water.

Option 3: Banana - Banana plants cannot be multiplied by cuttings. Bananas are propagated through suckers, which are small shoots that grow from the base of the plant. These suckers are separated from the main plant and replanted to produce new banana plants.

Option 4: Marigold - Marigold plants can be propagated by cuttings. By taking stem cuttings from a healthy marigold plant, new plants can be grown by planting these cuttings in soil or water.

In conclusion, option 3, Banana, is the correct answer as it cannot be multiplied by cuttings.