Ascientific law can be best described as an explanation of a specific relationship a series of observations with contradictory data a phenomenon which works under changing conditions a description of specific relationships under given conditions

a description of specific relationships under given conditions

Explanation:

A scientific law can be established after a series of observations have been conducted and after having obtained enough data as to be able to determine the behavior of a phenomena, whilst also taking into account specific given conditions. This can serve to describe or predict a range of natural phenomena.

i think it's c

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.