Ginny likes going to the ballpark to watch baseball, and she also is fond of going to the theater to listen to the symphony orchestra. The following diagram shows two of Ginny's indifference curves for going to ballgames and symphonies. With Ginny's initial budget constraint (BC1BC1), she chose to go to two symphonies and six baseball games per month (point X). Then her budget constraint shifted to BC2BC2, and she chose to go to five symphonies and five ballgames per month (point Y).
Of the following choices, which could have shifted Ginny's budget constraint from BC1BC1 to BC2BC2? Check all that apply.
The price of symphony tickets increased while her income and the price of baseball tickets stayed the same.
The price of baseball tickets increased while her income and the price of symphony tickets stayed the same.
Her income increased while the prices of baseball and symphony tickets stayed the same.
The prices of both baseball and symphony tickets decreased while her income stayed the same.
Based on Ginny's consumption of ballgames and symphonies after her budget constraint shifted, ballgames are ???? goods and symphonies are ???? goods.