Identify the present participial phrase that describes John.
AJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.
BJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.
CJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.
DJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.
AJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.
BJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.
CJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.
DJamming too much trash into a garbage bag, John saved several trips to the curb but had to carry much heavier bags.