CREATE TABLE table_8703 ("Game" FLOAT, "Date" TEXT, "Team" TEXT, "Score" TEXT, "High points" TEXT, "High rebounds" TEXT, "Location Attendance" TEXT, "Record" TEXT)

What is listed for the High rebounds on the Date of March 31?
SELECT "High rebounds" FROM table_8703 WHERE "Date" = 'march 31'
SELECT "High rebounds" FROM "table_8703" WHERE "Date" = 'march 31'