Detailed Solution:
The correct answer is “Sungas”.
Panini and Patanjali flourished under the Sunga dynasty. Patanjali wrote the Mahabhaṣya during the Sunga dynasty, which is a commentary on selected rules of Sanskrit grammar from Panini's Ashtadhyayi.
The Shunga dynasty (187 to 73 BC) was established by Pushyamitra, after taking the throne of Magadha from the Mauryas.