Sanskrit Krit Pratyay Exercises - Choose The Correct Option

Choose The Correct Option

'उच्छाश्रयितवान् / उच्शाश्रयितवान्' is the combination of 'उत् + श्रा + यङ् + णिच् - श्रा पाके भ्वादिः' dhatu and which pratyaya ?