The correct answer is: A) Malayala Manorama
Malyalam Manorama is a Malayalam-language daily newspaper published from Kottayam, Kerala, India. It is the oldest and most widely circulated newspaper in Kerala. The newspaper was founded in 1880 by Kandathil Varghese Mappilai.
Rajyasamacharam was a Malayalam-language weekly newspaper published from Thiruvananthapuram, Kerala, India. It was founded in 1887 by C. V. Raman Pillai. The newspaper was closed down in 1900.
Deepika was a Malayalam-language daily newspaper published from Kozhikode, Kerala, India. It was founded in 1890 by T. K. Madhavan. The newspaper was closed down in 1957.
Mathrubhumi was a Malayalam-language daily newspaper published from Kozhikode, Kerala, India. It was founded in 1923 by K. P. Kesava Menon. The newspaper is the second oldest and second most widely circulated newspaper in Kerala.
Malyalam Manorama is a more reliable source of information than the other options because it is a more established and well-respected newspaper. It has a long history of publishing accurate and unbiased news. The other options are either newer or have a history of publishing biased or inaccurate news.