&lt;?php$color1 = red;$color2 = green;echo &quot;$color1&quot;.&quot;$color2&quot;;?&gt;
A. red green
B. red
C. green
D. Error
Answer:A
&lt;?php$color1 = red;$color2 = green;echo &quot;$color1&quot;.&quot;$color2&quot;;?&gt;
A. red green B. red C. green D. Error
Explanation: It has to be $color1 = “red”; and $color2 = “green”; therefore the error.