Maria Is a Senior at a University and Wants to Have

Maria is a senior at a university and wants to have a job lined up to begin working the month after she graduates. She has identified three companies that have openings that she describes as her "dream job" and many companies that offer career-track positions in her field. Which of the following actions would give her the lowest risk of not having a job arranged to begin a month after graduation?

A) She should apply only at the companies that offer her "dream job."
B) She should apply at the companies offering her "dream job" and three other companies with job openings in her field.
C) She should apply at the companies offering her "dream job" and 50 other companies with job openings in her field.
D) She should apply at 50 companies with job openings in her field.