8. Normal and inferior goods Musashi likes going to the ballpark to watch baseball, and he also is fond of going to the theater to listen to the symphony orchestra. The following diagram shows two of Musashi's indifference curves for going to ballgames and symphonies. With Musashi's initial budget constraint (BC1), he chose to go to two symphonies and six baseball games per month (point X). Then his budget constraint shifted to BC2, and he chose to go to five symphonies and five ballgames per month (point Y). (? 10 BALLGAMES BC BG, 2 10 SYMPHONIES Of the following choices, which could have shifted Musashi's budget constraint from BC, to BC2? Check all that apply. The prices of both baseball and symphony tickets increased while his income stayed the same. The price of symphony tickets increased while his income and the price of baseball tickets stayed the same. The prices of both baseball and symphony tickets decreased while his income stayed the same. His income increased while the prices of baseball and symphony tickets stayed the same. Based on Musashi's consumption of ballgames and symphonies after his budget constraint shifted, ballgames are goods and symphonies are goods