In this, I need your help in providing your thoughts about the advantages, challenges, or trends in online marketing

In this, I need your help in providing your thoughts about the advantages, challenges, or trends in online marketing.

Task:

You need to select 2 of the following three options:

1. Online Marketing Advantages
2. Online Marketing Challenges
3. Online Marketing Trends

For each one of the selected options, you need to mention one point and explain it. Following are example scenarios:

• Scenario 1: if you selected the first two options (1 and 2, above). Then you need to mention one advantage and one challenge of online marketing and discuss these advantages and challenges.
• Scenario 2: if you selected option 1 (Advantages) and option 3 (Trends), then you need to select one advantage and one trend and discuss them
• In this, I need  At each point, you to mention the (advantage, challenge, or trend you have selected, followed by your discussion.
• Each challenge, Advantage, or Trend you discuss must be mentioned clearly at the beginning of each point. for example, you write, "One of the challenges in online marketing is XYZ".
• That is, your response will have two bulleted paragraphs.

Note Important :

MUST be based on a scientific research paper. Other resources (e.g., blogs, websites, news, etc.) are NOT accepted as a reference. for each point, you MUST provide at least one reference. 

Please take your time but please review the instruction and help me accordingly.