#include &lt;iostream&gt;    using namespace std;    enum colour &#123;        green, red, blue, white, yellow, pink    &#125;;    int main&#40;&#41;    &#123;        cout &lt;&lt; green&lt;&lt; red&lt;&lt; blue&lt;&lt; white&lt;&lt; yellow&lt;&lt; pink;        return 0;    &#125;
A. 012345
B. 123456
C. compile time error
D. runtime error
Answer:A
#include &lt;iostream&gt;    using namespace std;    enum colour &#123;        green, red, blue, white, yellow, pink    &#125;;    int main&#40;&#41;    &#123;        cout &lt;&lt; green&lt;&lt; red&lt;&lt; blue&lt;&lt; white&lt;&lt; yellow&lt;&lt; pink;        return 0;    &#125;
A. 012345 B. 123456 C. compile time error D. runtime error
EXplanation:The enumerator values start from zero if it is unassigned.