Read the following excerpt of an e-mail introduction to a potential employer, and then answer the question. "i have worked on cars since i was 12 years old, when i started going to the shop with my dad. at 16, i began my formal employment, working 20-25 hours a week while going to school at the same time. i am currently studying basic courses at the community college. my goal is to get my degree and take over my dad's business one day."what is the best description of this excerpt? a. it is written in the proper tone but lacks sufficient detail. b. the tone is too casual for the purpose, but the detail is well developed. c. the tone is appropriate for the purpose and the writer has used proper grammar and solid detail. d. the tone and detail are appropriate, but grammatical mistakes are present.