A 44-year-old client has been experiencing intense job stress. In recent weeks, the client has confided in the client's spouse that the client believes the client's firm monitors every aspect of the client's personal performance and that the firm is engaged in deception and cover-up of its "true purpose." A nurse would recognize that the primary theme of the client's delusional disorder is what?

A. Persecutory delusions
B. Grandiose delusions
C. Erotomanic delusions
D. Jealous delusions