what grant am I missing?

I am trying to issue the following statement. I have SELECT priviledges on the proper table. I am in Schema A, I am trying to create a table which is owned by Schema B. I can do this out of SQLPLUS. I cannot figure out what grant Im missing. I have create table.

Im just doing

execute immediate
'create table schemab.table as '||
'select '||v_colString||
'from schemaC.table';

Im currently in Schema A. Works perfectly fine from SQLPLUS.

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