单选题：下列英文标题中，那个是符合大小写规范的？
下列英文标题中，那个是符合大小写规范的？@[C](1)
A. Retinal vessel extraction by Matched Filter with first-order derivative of Gaussian
B. Retinal vessel extraction by matched filter with first-order derivative of Gaussian
C. Retinal Vessel Extraction by Matched Filter with First-Order Derivative of Gaussian
D. Retinal Vessel Extraction by Matched Filter with First-order Derivative of Gaussian
A.Retinal vessel extraction by Matched Filter with first-order derivative of Gaussian
B.Retinal vessel extraction by matched filter with first-order derivative of Gaussian
C.Retinal Vessel Extraction by Matched Filter with First-Order Derivative of Gaussian
D.Retinal Vessel Extraction by Matched Filter with First-order Derivative of Gaussian
答案：C
A. Retinal vessel extraction by Matched Filter with first-order derivative of Gaussian
B. Retinal vessel extraction by matched filter with first-order derivative of Gaussian
C. Retinal Vessel Extraction by Matched Filter with First-Order Derivative of Gaussian
D. Retinal Vessel Extraction by Matched Filter with First-order Derivative of Gaussian
A.Retinal vessel extraction by Matched Filter with first-order derivative of Gaussian
B.Retinal vessel extraction by matched filter with first-order derivative of Gaussian
C.Retinal Vessel Extraction by Matched Filter with First-Order Derivative of Gaussian
D.Retinal Vessel Extraction by Matched Filter with First-order Derivative of Gaussian
答案：C