Look at the ANSWERS for Clues. All the Answers insert Commas in various locations into the text. OBSERVE COMMA USE and NATURAL PAUSES.
Answer F – No change KEEP F because there isn’t a need for a Comma or a NATURAL PAUSE in this portion.
Answer G ELIMINATE G because there are no NATURAL PAUSES after donations or company. If there were NATURAL PAUSES, from a cork-importing company, would be set apart as a Parenthetical. Remove the Parenthetical, and we would get: Pollack eventually received cork donations based in Portugal …which makes no sense.
Answer H ELIMINATE H because there is no NATURAL PAUSE after donations.
Answer J ELIMINATE J because there is no NATURAL PAUSE after company.
The Correct Answer is