With regard to the factors of production, "land" refers to which of these? A)spaces in which finished goods are produced
B)economic regulations present within a country
С) machines used to increase the efficiency of production
D)raw materials that are used to produce finished products

the correct answer would be b, when, queen, calder hall and london.

explanation:

we always capitalize words when a paragraph or sentence is starting, when an important name is used, when a place is being written, or simply when a noun is used, etc. so in this sentence, sentence is starting from 'when', so it will be written in capital letters. secondly, queen is considered to be an important person, so it will also be written in capital letter. next, the name of the town is mentioned, i-e calder hall, which will also be written in capital letters. in the last,   city name is being used, 'london', which will also be written in capital letters. so option b is the most appropriate one.

d) social security number

let me know if i am correct or not, so i can edit the answer.