The Lasting Contribution of Charles Ledger,an Adventurer and Entrepreneur Whose

The lasting contribution of Charles Ledger,an adventurer and entrepreneur whose travels ranged from Bolivia and Peru to Australia was:

A) to import alpacas to Australia.
B) to introduce South American and Australia to double-entry bookkeeping.
C) to make possible a cure for malaria by spreading seeds for the tree that produces quinine to European colonies.
D) to create a new textile industry for alpaca wool in Algeria.