Final answer:
The workplace arrangement where two employees share the responsibilities of one full-time position is known as b) job sharing.
Step-by-step explanation:
Job sharing is a flexible work arrangement that allows two or more individuals to share the responsibilities of one full-time position, typically with a proportional reduction in salary and benefits.
This arrangement provides employees with the opportunity to balance work with other commitments or interests while still contributing effectively to their employer's operations. Job sharing can lead to greater job satisfaction, work-life balance, and retention of skilled workers. The arrangement where two employees consolidate their duties into one job and each work part-time is known as b) job sharing.