Final answer:
The song "Walk This Way" was first recorded by Aerosmith in 1975 and then by Run DMC in 1986 in a famous collaboration that blended rock and hip-hop.
Step-by-step explanation:
The song "Walk This Way" was first recorded by Aerosmith in the year 1975. It became one of their signature songs and a staple of classic rock radio. The version featuring Run DMC was recorded and released in 1986, becoming a groundbreaking collaboration between rock and hip-hop genres.
The correct answer to the student's question is a) Aerosmith in 1975, Run DMC in 1986. This crossover hit was significant as it helped introduce rock fans to hip-hop and vice versa, creating a new wave of music fans interested in both genres.