Answer:
d . Text structure is often a problem and solution
Step-by-step explanation:
a . is not the right answer. The scientific text doesn’t have to include points and numbered steps.
b. is not the right answer. Not all scientific texts include the experiment, and it’s the description.
c. is not the right answer. Scientific text isn’t manuals for the performance of an experiment.
d. is the right answer. Scientific texts are structured to pose the problem, explain it, and analyze it. Afterward, the author poses the solution to the said problem, citing why this solution is the right one and what are the objective and accurate reasons that these results are true. It has to be clear and propose scientific methods and sources.