PLEASE HELP
Read the passage.

excerpt from "A Cooking Revolution: How Clean Energy and Cookstoves Are Saving Lives" by Chef José Andrés, June 7, 2016

The Obama administration's investment goes a long way toward achieving our goal of bringing access to clean cookstoves and fuels to 100 million households in places like China, Guatemala, Kenya, and India by 2020.

Just last month, India's Prime Minister Narendra Modi announced his plan to connect 50 million Indian families to clean cooking gas over the next three years. This is an important step being taken at an unprecedented scale, and it could help protect the lives of millions, while also improving India's environment.

How does the author's use of language in the phrase "goes a long way toward achieving our goal" affect this passage?

The phrase strengthens the author's tone of expertise, making the information persuasive.
The phrase adds a lighthearted tone, making the passage less serious.
The phrase creates an informal tone that makes the passage more reader-friendly.
The phrase adds factual information, making the tone of the passage more objective.