Final answer:
The exact percentage of bloggers who relied on blogging as their primary income in 2010 is not provided in the references. Most bloggers do not use it as their main income, as they depend on other materials and platforms. The industry is diverse and reflects various levels of professionalism and income dependence.
Step-by-step explanation:
The question asks about the percentage of bloggers in 2010 who considered blogging as their primary source of income. While the provided information does not specify this exact statistic, it does highlight the state of blogging during that period. Given that the question mentions a term (BC), it suggests that there might have been an existing study or statistic that the student is referencing, which is not provided here.
Therefore, it is important to note that most bloggers do not consider blogging as a primary source of income, relying on other material and platforms as indicated in the reference information. Blogging is a diverse field with varying levels of professional engagement, as some may do it occasionally, while others may pursue it more seriously as a significant income source.
Considering the swift rise of internet users and the proliferation of websites in the 2010s, alongside the number of blogs cited on platforms such as the Huffington Post and the daily visitor counts for popular political blog sites, it suggests that while the audience and number of blogs were substantial, not every blogger may have relied on it as their main economic sustenance.
Additionally, the statistic provided that only 27 percent of college graduates have a job related to their major might allude to the diverse career paths, including blogging, that graduates pursue outside their fields of study.