Final answer:
In July 2014, retail was likely the industry with the highest employment rates for teens and young adults, due to the seasonal increase in job opportunities and the nature of retail as an accessible entry-level industry.
Step-by-step explanation:
The industry with the highest employment figure for both teens and young adults in July 2014 was likely the retail sector. The retail industry typically employs a significant number of young people due to the nature of the jobs, which often include entry-level positions that do not require advanced education or experience. Additionally, summer months like July usually see a rise in employment among teens and young adults as they take on part-time and temporary jobs.
Historical employment trends have shown that jobs in the service sector, which includes retail establishments, have seen dramatic increases over the past few decades. While technology, healthcare, and agriculture do employ teens and young adults, retail has traditionally been a prominent source of employment for this demographic due to its accessibility and the seasonal spike in job opportunities during the summer.