Final answer:
Germany hoped for a quick knockout blow but settled into a stalemate position.
Step-by-step explanation:
The statement that best describes the first few months of World War I is option d. Germany hoped for a quick knockout blow but settled into a stalemate position. In the early months of the war, Germany made significant advances into France, but due to combined French and British resistance, the German offensive was halted before reaching Paris. This led to the establishment of a network of opposing trenches on the western front and a prolonged stalemate that lasted for the next four years.