select the correct answer from the drop - down menu. jamal wrote this sentence in his research paper about…

select the correct answer from the drop - down menu. jamal wrote this sentence in his research paper about the density of nutrients in farm milk: over the last two decades farm milk has become more nutrient - dense. the correct way for jamal to write the underlined part of the sentence is
Answer
Brief Explanations:
In this sentence, a comma is used to separate the introductory phrase "Over the last two decades" from the main - clause "farm milk has become more nutrient - dense". A comma is the correct punctuation mark for this purpose. A dash is used for emphasis or to set off non - essential elements in a different way, and a colon is used to introduce an explanation or list.
Answer:
two decades, farm milk