The diagram illustrates three budget lines, QR, QT and SR. QR is the consumer’s original budget line. Which set of changes could make the budget line move to SR?
- Aprice of good X: decrease; consumer’s income: decrease
- Bprice of good X: decrease; consumer’s income: increase
- Cprice of good X: increase; consumer’s income: decrease
- Dprice of good X: increase; consumer’s income: increase