Report: “Complaints fell from 80 to 50, while response time remained unchanged.” Which conclusion is supported?
กThere were fewer complaints, and response times also became shorter.
ขThere were fewer complaints, but responses were not faster.
คComplaints remained unchanged, although responses became much faster.
งThere were more complaints, while response time improved during the period.
เฉลยอธิบาย
The two trends are explicitly stated: complaints decreased and response time stayed the same. The other options each alter or violate a specific part of that meaning or rule. The other options each alter or violate a specific part of that meaning or rule. The other options each alter or violate a specific part of that meaning or rule.