Q:

Select the most appropriate option, out of the five options given, for each of the following sentences, which in your view, should be grammatically and structurally correct.

• 1
  E-commerce businesses who don't update their websites frequently cannot succeed.
• 2
  E-commerce businesses who don't update their websites frequently can not succeed.
• 3
  E-commerce businesses that don't update their websites frequently cannot succeed.
• 4
  E-commerce businesses that does update their websites frequently cannot succeed.
• 5
  E-commerce businesses who don't update their websites frequently can't not succeed.