Which of the following lists the correct SI abbreviations for a milliliter, a megameter, and a centigram, respectively?

• A. ml, MG, cg
• B. mL, Mm, cg
• C. mL, mm, cg
• D. ml, Mm, cG

Answer: (B)

Verified step by step guidance

1. Recall the correct SI unit abbreviations for each prefix and unit: the prefix 'milli-' is abbreviated as 'm', 'mega-' as 'M', and 'centi-' as 'c'. The base units are case-sensitive, for example, 'L' for liter, 'm' for meter, and 'g' for gram.
2. For milliliter, combine the prefix 'milli-' (m) with liter (L), resulting in 'mL'. Note that the liter is capitalized as 'L' to avoid confusion with the number 1.
3. For megameter, combine the prefix 'mega-' (M) with meter (m), resulting in 'Mm'. Here, 'M' is uppercase for mega, and 'm' is lowercase for meter.
4. For centigram, combine the prefix 'centi-' (c) with gram (g), resulting in 'cg'. Both letters are lowercase because 'c' is the prefix and 'g' is the unit.
5. Compare the options given with these correct abbreviations: milliliter = 'mL', megameter = 'Mm', centigram = 'cg'. The correct list matches 'mL, Mm, cg'.