Which of the following kingdoms held power in Northern India in the period between the decline of the Gupta Empire and the rise of Harshavardhana in the early seventh century?

1. The (later) Guptas of Magadha

2. The Pushyabhutis of Thanesar

3. The Maukharis of Kanauj

4. The Paramaras of Malwa

Select the correct answer using the code given below.