Which row shows the colours seen when thymolphthalein and methyl orange are each added separately to the solution named?
- Adilute HCl; colourless with thymolphthalein; yellow with methyl orange
- Bdilute HCl; blue with thymolphthalein; red with methyl orange
- Caqueous NaOH; colourless with thymolphthalein; red with methyl orange
- Daqueous NaOH; blue with thymolphthalein; yellow with methyl orange