Answer : 4. "Sue Redfern"
Explanation :

Recently, the International Cricket Council (ICC) appointed Sue Redfearn as the first female neutral umpire to officiate in a bilateral series. Redfearn will officiate in the upcoming ICC Women's Championship and T20I matches between Australia and South Africa. The ICC also appointed seven other impartial female umpires to officiate in the Women's Championship series. The decision to appoint Redfern is aimed at promoting gender diversity in officiating roles.