Which of the following is the correct chronological sequence of the ruling dynasties of northern India, from the decline of the Mauryas to the rise of the imperial Guptas?

• A. ungas, Indo-Greeks, Kushans, Sakas and Guptas
• B. ungas, Kushans, Parthians, Sakas and Guptas
• C. ungas, Kanvas, Indo-Greeks, Sakas, Parthians and Guptas
• D. anvas, Sungas, Indo-Greeks, Sakas, Parthians and Guptas