What is a marxist principle that the above quote to explain?

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be the rise of the "proletariat," since Marx and his peers were highly against the consolidation of private wealth. 

“destroyers for bases agreement in the destroyers for bases agreement between the united states and the united kingdom on september 2, 1940, fifty caldwell , wickes, and clemson class us navy destroyers were transferred to the toyalbnavy from the united states navy in exchange for land rights on british possessions.” i hope this you .