<span>A) In the selected sentence, the word gardening is a gerund, and the gerund phrase functions as the subject.
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Answer:
illustrates the assembly line principle of making things faster.
Explanation:
The assembly line principle illustrates the process in which the production is managed and the way it helps in the completion of the product. In this process the manufacturing process is broke up into simpler steps. The labor involved in the manufacturing of the product is divided.
In the given excerpt, fast food restaurants like Burger King, Pizza Hut and Mc Donald's presented their products like the factories. They adopt the method the assembly line for the purpose.
The answer is a.. A colon is best used in advance of a new topic or point, and not in the midst of a sentence, as is the case with the other options.