QUESTION
Consider your student ID as eight decimal digits, $d_{1}, d_{2}, \ldots, d_{8}$, read leftto-right. For example, for the student ID 01234868 , \[ d_{1}=0, d_{2}=1, d_{3}=2, d_{4}=3, d_{5}=4, d_{6}=8, d_{7}=6, d_{8}=8 \text {. } \] Fill in the $d_{i}$ values using your student ID and select all true statements. $\left(d_{1}, d_{2}, \ldots, d_{8}\right)$ is a string of length 8 from the alphabet set $\mathrm{D}$. $\left[d_{1}, d_{2}, \ldots, d_{8}\right]$ is an 8-combination with repetition of elements in the set $\mathrm{D}$. $\left(d_{1}, d_{2}, \ldots, d_{8}\right)$ is a length 8 permutation of elements from the set $\mathrm{D}$. $\left(d_{1}, d_{2}, \ldots, d_{8}\right)$ is a length 8 sequence of elements from the set $\mathrm{D}$. $\left\{d_{1}, d_{2}, \ldots, d_{8}\right\}$ is an element of the power set of set $\mathrm{D}$. $\left\{d_{1}, d_{2}, \ldots, d_{8}\right\}$ is a length 8 combination of elements from the set $\mathrm{D}$.
Public Answer
