Please help and explain why

Use the following to answer questions 3842 : The income statement for the month of June, 2016 of Delgado Enterprises contains the following information: 38. The.entry to close the revenue account includes a A) debit to Income Summary for $3,400. B) credit to Income Summary for $3,400. C) debit to Income Summary for $7,000. D) Credit to Income Summary for $7,000. 39. The entry to close the expense accounts includes a A) debit to Income Summary for $3,400. B) credit to Rent Expense for $1,000. C) credit to Income Summary for $3,600. D) debit to Wages Expenses for $2,000. 40. After the revenue and expense accounts have been closed, the balance in Income Summary will be: A) 50 B) a debit balance of $3,400. C) a credit balance of $3,400. D) a credit balance of $7,000. 41. The entry to close Income Summary to Retained Earnings includes: A) a debit to Revenue for $7,000. B) credits to Expenses totaling $3,600. C) a credit to Income Summary for $3,400. D) a credit to Retained Earnings for $3,400. 42. At June 1st, 2016, Delgado reported retained earnings of $35,000. The company had no dividends during June. At June 30th,2016, the company will report retained earnings equity of: A) $35,000. B) $42,000. C) $38,000. D) $31,000