Other things remaining the same, a rise in the price of a good will cause the consumer surplus to:

1. Consumer surplus is the triangular area below demand and above price. 2. A higher price line shrinks this triangle, so consumer surplus falls. 3. A price fall would raise it, it does not stay fixed, and it does not turn infinite, so those options are wrong. _Source: ICAI BoS CA Foundation Paper 4 Business Economics, Ch 2 Unit II "Theory of Consumer Behaviour", p.10_