Hello, the answer you're looking for is D. Investment bankers. I have written word form of this answer. This is straight from the reading assignment that I have and this is the answer they give, "Investment bankers underwrite new issues of corporate stocks and bonds and state and local government debt securities."
https://courses.jmhs.com/content/enforced/7056-CE011_20_1/Personal%20Finance/CE011%20Part%201/Lesson_1/Reading%20Assignment%20Lesson%201.pdf?_&d2lSessionVal=nR0I7FLcrb4A6JQnFpcK5YT8o&ou=7056
This is the URL for the reading assignment, the page i got this information from is on page 8. Under NON-INTERMEDIARY FINANCIAL INSTITUTIONS, the fourth paragraph, third sentence.
Brainliest please if you can.
Thank you, Hope this answer is what you are looking for. Have a nice day!!