Read the passage and answer the questions.

salt

limiting your fast food considerably decreases your sodium intake. most restaurants use too much sodium, or salt, which rapidly spills over the recommendation of no more than 1500 mg per day. when you consume too much salt, you multiply the sodium levels in your blood. this salt pulls in water, which can escalate blood volume. as your blood volume raises, so does your blood pressure. high blood pressure has detrimental effects on the cardiovascular system. lessening your sodium intake by eliminating fast food can have a substantial effect on reducing these risks.

question 1: what effect does the author's addition of the section titled "salt" have on the text overall?
group of answer choices

it describes how high levels of sodium in the blood as a result of high intake of restaurant food can cause high blood pressure and heart disease, which supports the central idea that consumption of fast food is associated with health risks.

it describes how high levels of sodium from the salt content of restaurant food can lead to several digestive and gastrointestinal diseases, which supports the central idea that the consumption of fast food is associated with health risks.

it describes how high levels of sodium in the blood as a result of frequent consumption of fast foods can lead to diabetes and obesity, which supports the central idea that consumption of fast food is associated with health risks.

it describes how high levels of salt in the blood as a result of eating fast food causes arterial plaque, leading to potential for stroke, which supports the central idea that consumption of fast food is associated with health risks.