Which alternative describes the following adjectives in the SUPERLATIVE form? HAPPY - FAST-OLD - EXPENSIVE Oa) Happiest - fastest - oldest - expensivest Ob) Most happy - most fast- most old - expensivest Oc) Happiest - fastest - oldest - most expensive d) Happiest - most fast - oldest - most expensive e) Happiest - fastest - most old - most expensive​.