The argument is trying to establish a causal link: Certification -> More likely to leave. To weaken this, we need to find an alternative explanation for the discrepancy (18% vs. 8%) or show that the 8% figure is not a good representative of overall comparison.
(A) Most engineers who leave company Z within their first year do so voluntarily, often for positions at competing firms. This explains why engineers leave but this reason is applicable to all employees not just the one who holds that certification. Incorrect.
(B) Company Z does not provide incentives for employees to obtain professional certifications. This is about company policy regarding certifications. It doesn't explain the discrepancy in percentages or weaken the link between certification and leaving. Incorrect.
(C) Engineers are not required to report certifications they obtained prior to joining the company.
Hang on! If engineers are not required to report certifications obtained before joining then the 8% figure from the HR survey might be an underestimate of the true percentage of all engineers at Company Z who hold the certification The 8% might only reflect certifications obtained after joining or only those who chose to report. This raises doubt in the causal link established by the argument. Keep.
(D) The majority of engineers at company Z work in teams that use agile methodologies. This choice is irrelevant. If anything, this might make one less likely to leave if their skills are being utilized. Incorrect.
(E) Some engineers obtain their agile project management certification only after joining the company. This is consistent with the argument. If they get it after joining, they would be included in the 8% survey. But this doesn't explain why so many employees quit within a year. In fact, if they get it after joining and then leave it might even
strengthen the idea that the certification is linked to leaving.
Option C is best.
Bunuel
In a recent calendar year, several engineers both joined and left Company Z. Among engineers who left within their first year of employment, 18 percent held an agile-project-management certification. Yet only 8 percent of all engineers who completed the annual HR survey reported holding that certification. Therefore, possessing the certification appears to make an engineer more likely to leave Company Z within a year of being hired.
Which of the following, if true, most seriously weakens the argument?
(A) Most engineers who leave company Z within their first year do so voluntarily, often for positions at competing firms.
(B) Company Z does not provide incentives for employees to obtain professional certifications.
(C) Engineers are not required to report certifications they obtained prior to joining the company.
(D) The majority of engineers at company Z work in teams that use agile methodologies.
(E) Some engineers obtain their agile project management certification only after joining the company.