Kurtaklanib kopayish qaysi organizmlarda kuzatiladi?

A) govak tanlilarda, kovakichlilarda, yassi chuvalchanglarda
B) govak tanlilarda, kovakichlilarda va ayrim halqali chuvalchanglar
C) spirogira, igna tanlilar, halqali chuvalchanglar
D) yassi va parazit chuvalchanglar, halqali chuvalchanglar va ignatanlilar