Final answer:
The objective that is NOT an advantage of pruning is invigoration (b). Pruning typically aims at dwarfing, safety, and increased productivity of the plant, not directly at stimulating its growth.
Step-by-step explanation:
The correct answer is b) invigoration. Pruning generally involves the selective removal of certain parts of a plant, such as branches or roots, to improve or maintain its health and aesthetics. The objectives or advantages of pruning typically include:
- Dwarfing - To reduce the size of the plant.
- Safety - To remove dead or hazardous branches to ensure the safety of people and property.
- Increase productivity - To enhance fruit or flower production.
However, invigoration, which refers to stimulating the growth of a plant, is generally not a direct goal of pruning. While pruning can sometimes stimulate new growth, the main purpose is not to invigorate but to shape the plant, remove dead or diseased tissue, or improve fruiting and flowering.