The correct option is C Septicidal capsule and schizocarpic
Linseed has a septicidal capsule. The septa between the locules of capsules split as the fruit opens and the seeds are released. Castor seeds are schizocarpic. Schizocarpic fruits are dry fruits that open suddenly when ripe and split into two or more parts each with a single seed.
Thus, the correct answer is option C.