Which of the following embryonic tissues gives rise to the hematopoietic system?

A Neuroectoderm
B Mesoderm ✓
C Endoderm
D Ectoderm

Explanation

The mesoderm is one of the three primary germ layers in the embryo, and it gives rise to the hematopoietic system, among other tissues.

Source

Langman's Medical Embryology
Hematology Hematology: Hematopoiesis Hematology: Hematopoiesis Easy MEDICAL Confidence: high