I need to ask one thing about qiime1 for OTU assignment I used below command is it correct to use -m rdp when providing fasta and taxonomy file

I assign OTU using this command:

assign_taxonomy.py -i seqs.fna_rep_set.fasta –r 97_otus.fasta –t 97_otu_taxonomy.txt -m rdp

I used fasta and taxonomy file from latest greengenes database gg_13_8_otus.tar.gz

I am not sure -m rdp is correct to use here?

Thanks