The sample space contains all possible outputs. Since the coin can land on either heads or tails and the spinner can output A, B, C or D, there are 8 possible outcomes (basically, every output of the spinner can be paired with either heads or tails from the coin):
![\Omega = \{(T,A),(T,B),(T,C),(T,D),(H,A),(H,B),(H,C),(H,D)\}](https://img.qammunity.org/2020/formulas/mathematics/middle-school/834x67t2hog7zuu6it1h59matbifox3aem.png)