Answer: d. should be lowercase.
Explanation:
ID attributes are case sensitive for the most part - DOM and Java Script - which means that the ID attribute does not always have to be lowercase.
It can be uppercase as well. ID attributes can also start with a number and as of HTML 5 can start with a special character as well. Finally, the ID attribute must always be unique within each document.
Answer:
<em>Yes</em><em> </em><em>they</em><em> </em><em>are</em><em> </em><em>correct</em><em>.</em><em> </em><em>welcome</em><em>.</em><em>.</em><em>.</em><em>.</em>
Sit with good posture, get up and stretch and walk for 1 minute every 45 minutes.
