Final answer:
Ray should highlight reading comprehension on his resume as it is crucial for understanding technical documentation in the role of an aircraft mechanic. Research skills and customer service are less directly related, and transportation routes are not typically relevant for this position.
Step-by-step explanation:
When Ray is applying to a job opening for an aircraft mechanic, he should make sure to include reading comprehension on his resume to help him stand out. Being an aircraft mechanic requires the ability to understand and interpret various types of documentation, including maintenance manuals, safety guidelines, and technical schematics. Reading comprehension is essential in not only understanding these documents but also in ensuring that maintenance and repairs are performed accurately and safely.
Although research skills and customer service are valuable, they are not as directly related to the daily requirements of an aircraft mechanic as reading comprehension. And while knowing transportation routes might be helpful, it is not a skill that would typically make an applicant for this position stand out. Therefore, highlighting his reading comprehension capability is essential for Ray's resume to catch the attention of potential employers in the field of aircraft maintenance.