&lt;?phpecho &quot;This&quot;,&quot;was&quot;|&quot;a&quot;,&quot;bad&quot;.&quot;idea&quot;;?&gt;
A. Thiswasabadidea
B. Thiswasbadidea
C. Thiswas a badidea
D. Thiswas abadidea
Answer:A
&lt;?phpecho &quot;This&quot;,&quot;was&quot;|&quot;a&quot;,&quot;bad&quot;.&quot;idea&quot;;?&gt;
A. Thiswasabadidea B. Thiswasbadidea C. Thiswas a badidea D. Thiswas abadidea
Explanation: You can use only comma and dot operator to join starings, other characters do not have the same function.