Which of these inferences is best supported by the following passage (paragraph 10)?

Across professional sports, in fact, one of the most obvious and quantifiable manifestations of gender-based discrimination is that women athletes face a huge pay gap. The total pay-out for the Women's World Cup was 15 million United States dollars, compared with 576 million United States dollars for the last men's World Cup - nearly 40 times more for men. The exception is tennis, which since 2007 has awarded equal prize money at all four Grand Slam tournaments.
A. The pay for successful women athletes lags disproportionately behind their male counterparts'.
B. There is no furtherwork to do to reach complete gender equality in the sport of tennis.
C. The payout for the World Cup is ridiculous.
D. Women athletes are expected to outearn their male counterparts by 2050.

A. The pay for successful women athletes lags disproportionately behind their male counterparts'.