The possibilities for the country will increase many times as vehicles are involved in the distribution and manufacture of many different products. Moreover, an economical, powerful fuel will increase the GDP as it will allow more work to be carried out.
Answer:
Theme
Explanation:
A theme is the topic of a story, the main idea is a bit of a summary. This format seems to be more of a theme than a main idea.
The correct answer is the last option.
To credit a source means to ACKNOWLEDGE WHERE YOU FOUND A SOURCE. In order to avoid plagiarism, the writer has to cite the sources where he found information, being the most common citation formats APA or MLA. The citation style to use will depend on the topic to discuss in the paper.