Final answer:
The time spent with digital media in the United States has been on a steady increase, impacting traditional media sources like print newspapers and radio. The actual percentage for 2020 media time spent on digital media is not specified, but given the trends, it could be on the higher end of the options provided.
Step-by-step explanation:
In 2020, the time spent with digital media in the United States accounted for a significant percentage of total media time spent. Pew Research Center reports indicate that there's been a rise in consumption of news from online and digital sources among U.S. adults, with more people, especially younger individuals, turning to smartphones and tablets for news updates. Since 2004, the share of Americans obtaining their news digitally has notably increased, affecting traditional media outlets.
Considering the decline in print news reading and the stable yet uncertain future of television news viewership, it's evident that digital media plays an increasingly dominant role in how information is consumed. The shift from traditional forms of media, like print newspapers and radio, to digital platforms suggests a transformation in media time spent.
Media time spent with digital media has most likely increased beyond the 39% reported in 2012, and while the exact percentage for 2020 is not provided in the information above, if we consider the trend, it is reasonable to suggest that the percentage could be closer to the higher options provided in the question.