Answer the following question: Read the article and select the best answer. Article: Although 19-year-old George Dennehy is armless, he isn't letting that stop him from pursuing his dreams and sharing his passion with the world. Born without arms, the young boy's birth parents left him. Luckily, a warm-hearted couple _ him and took good care of him. However, his new parents never allowed him to use his disability as an excuse to be lazy. When George turned eight, they asked him to sign up for cello lessons. The instrument is tough even for people who have the use of both their hands, so it was even more challenging for George, who had to learn to play it with his feet. Thanks to his music teacher, the young boy not only mastered the cello, but also realized that he had a passion and talent for music. During middle school years, he also mastered the piano and guitar. His music talent caught the eye of an American rock band who invited him to perform alongside them at a ten-day-long music festival. The experience has inspired this once shy boy to pursue a career in music. He has also become a motivational speaker who encourages both able and disabled people to pursue their dreams, no matter how impossible these dreams may sound. Geoge Dennehy is armless, he isn't letting that stop him from pursuing his dreams and sharing his passion with the world. Question: How many instruments did George Dennehy master according the passage? Options: A: 1 B: 2 . C: 3 D: 4
Answer:
C