AWilhelm Furtwängler
BNorrie Paramor
CVladimir Ashkenazy
DEugene Ormandy
Correct Option: 4
Explanation:
Eugene Ormandy
His tenure began in 1936. Two years after his appointment as associate conductor under Leopold Stokowski, he became its music director and conducted 100 to 180 concerts each year until his retirement in 1980. He was then made conductor laureate.