Blocklike masses that form from paraxial mesoderm and develop into muscle, axial skeleton, cartilage, and dermis are known as

The answer is somites and their subdivisions.   The vertebrae and ribs are formed from the sclerotome, the limb/trunk muscles from the myotome, and the dermis layer of skin forms from the dermatome. This segmentation and differentiation of the paraxial mesoderm occur in a rostral-to-caudal direction along the dorsal-ventral axis of the notochord.

you didn't give any options but heres what i can tell you: an inference is likely to change based on additional observations. the latter is something that you have seen or sensed using your sensory organs while the former is like a conclusion out from what you have observed.