Answer:
a. good A.
Step-by-step explanation:
Data provided in the question
Spending percentage are as follows
For goods A = 23%
For goods B = 11%
For goods C = 1%
For goods D = 3%
Now the highest price elasticity of demand by ceteris paribus that means all other things would remain unchanged or constant
Since, Goods A has the highest spending percentage so it would lead to the highest price elasticity of demand