In most industries the rising cost of support services actually passes a greater financial burden to customers; in the legal profession, for example, a current climb in the cost of court reporting has forced many attorneys to raise their hourly rates.
3 and 5 can be eliminated on first look.
3. has meant that many attorneys are being forced to raise their hourly rates.
5. is meaning that many attorneys are raising their hourly rates by force.
1, 2 and 4 all grammatically correct. 1 and 2 uses present perfect and both are correct and two correct options are not possible; thus, 4 is the black sheep in the herd and is the right answer by POE.
1. has forced many attorneys to raise their hourly rates.
2. has made many attorneys raise their hourly rates.
4. is forcing many attorneys to raise their hourly rates.
Present perfect represents actions happened just before present in unspecified time and that are true in its effect in present as well.
my work has completed: work just completed before present and you can check the fact.
in above question "a current climb in the cost of court reporting " is suggesting that something is happening or happened in present tense and thus its effect must be that point onward in continuous tense. has "present perfect" suggests that action completed just before present tense and thus attorneys can not raise rates before the current climb or before present tense.