Write SQL query to solve given problem: Indicate the time frame and details of the most recent care plan suggested to Jacquelyn Shanahan.. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT strftime('%J', T2.STOP) - strftime('%J', T2.START) AS timeFrame , T2.DESCRIPTION FROM patients AS T1 INNER JOIN careplans AS T2 ON T1.patient = T2.PATIENT WHERE T1.first = 'Jacquelyn' AND T1.last = 'Shanahan' ORDER BY T2.START DESC LIMIT 1