Which statement is true regarding this connect string?

(DESCRIPTION

(FAILOVER=on)

(ADDRESS_LIST=

(LOAD_BALANCE=ON)

(ADDRESS=(host=sales-east1) (port=1522) )

(ADDRESS=(host=sales-east2)(port=1522))

(ADDRESS=(host=sales-east3) (port=1522) ))

(ADDRESS_LIST=

(LOAD_BALANCE=ON)

(ADDRESS=(host=sales-west1) (port=1522) )

(ADDRESS=(host=sales-west2) (port=JS22))

(ADDRESS=(host=sales-west3) (port=lS22) ) )

(CONNECT_DATA=

(SERVICE_NAME=sales)

(REGION=east)))