Take context from the input text and decide on the accurate relationship between 'fresh' and 'retail' from the options provided.
Options: industry, founded by, director/manager, subsidiary

The main Saudi stock index has plunged 12 percent this month as local retail investors dump shares in response to a fresh slide of oil prices, which has slashed the government's oil revenues, and high valuations of shares, which have deterred foreign investors from buying.
industry