The main purpose of a cover letter is to:
a. get hired for a position.
b. be called in for an interview.
c. let your friends know how your job search is going.
d. obtain references from your network.

B: Be called for an interview

Explanation:

 The first step in a job application process is  to write and send a resumè, which contains the description of the applicant's job experience, education and accoplishments. After that, it is important to send a cover letter with more specific information, showing the qualifications and preference for this particular job, which may call attention of the hiring manager that could invite the person for an interview.

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.