Answer:
a. Imports (M), b. Government Expenditure (G), c. Exports (X), d. Investment 'I'
Step-by-step explanation:
a) 'Kevin buys a bottle of Italian wine' is a part of US Imports (M)
b) 'The state of Pennsylvania repaves highway PA 320' is a part of US Government Expenditure (G)
c) 'Maria's father in Sweden orders a bottle of Vermont maple syrup from the producer's website' is a part of US Exports (X)
d) 'Kevin's employer upgrades all of its computer systems using U.S.-made parts' is a part of US Investment 'I'