An engineering company has four openings and the applicant pool consists of six database administrators and eight network engineers. If the hiring is done without regard for the specific qualifications of the applicants, find the probability that the four hired will be
(a) All network engineers.
(b) Two database administrators and two network engineers.
(c) All database administrators.
(d) Three database administrators and one network engineer.
(e) One database administrator and three network engineers.

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