Answer:
Option A.
The number of elements in the sample space of this experiment is 84
Explanation:
The sample space for an experiment represents the number of possible results that may occur when conducting the experiment.
When throwing a die and observe the number obtained there are 6 possible results
When throwing a coin there are 2 possible results.
When spinning a wheel divided into 7 regions we have 7 possible outcomes.
If we combine these three experiments, then the sample space S is composed of the product of the possible results of each experiment.
![S = (6)(2)(7)\\\\S =84](https://img.qammunity.org/2020/formulas/mathematics/high-school/1fbruaem86vuaw6fgrwnpuqbui3s2x94h1.png)