Which part of the TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384 cipher suite is used to specify the bulk encryption algorithm?

Which part of the TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256_P384 cipher suite is used to specify the bulk encryption algorithm?
A. ECDHE_ECDSA
B. AES_128_CBC
C. SHA256
D. P384