Which of the following reactant on reaction with conc. NaOH followed by acidication gives the following lactone as the product?

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the product?

Which of the following reactants on reaction with conc. NaOH followed by acidification gives the following lactone as the only product

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the main product ?

Which of the following reactants on reaction with conc. NaOH followed by acidification gives following lactone as the main product ?

Which of the following reactants on reaction with conc NaOH followed by acidification given the following lactone as the only product?