There are pros and cons to using special characters in email subject lines. Generally, marketers report higher open rates.
Some report better engagement, but many don’t.
There are also reports of special characters causing problems with deliverability, mostly because spammers became very fond of special characters for a while.
The answer & explanation for this question is given in the attachment below.
Answer: A select the picture
Answer:
<u>synchronous</u>
Explanation:
During synchronous transmission parties are exchanging messages in real time.