In American English, which punctuation marks always go inside the quotation marks?
A. question marks and exclamation points
B. periods and commas
question marks and commas
D. exclamation points and periods

THE ANSWER IS B.

4. Some website addresses are considered more reliable than others.

Explanation:

The domain extension . org is better for nonprofit websites, while .com is better for for-profit businesses selling a service or product. In terms of SEO value, which one you pick has little effect on SEO.

The domain suffix is the end of the domain name (the .com part) and can offer insight into the type of organization the site is linked to. For example, any commercial enterprise or corporation that has a web site will have a domain suffix of .com, which means it is a commercial entity