Answer:
The answer to your question is: letter A and letter B
Step-by-step explanation:
A 1,000 mL = 1 L This option is correct, there are 1000 ml in 1 liter.
B 1 g = 100 cg This option is correct, there are 100 cg in 1 gram.
C 1,000 km = 1 m This option is incorrect, the proportion is 1000 meters in
1 kilometer.