💡 Detailed Explanation
The correct answer is 「はおろか」 (wa oroka), which means 'let alone...' or 'not to mention...'. It presents a relatively easy or advanced action (walking) as impossible, followed by 「さえ」, 「すら」, or 「も」 with a negative verb showing that an even simpler action (standing up) is also impossible. 「はともかく」 means 'setting aside'. 「どころか」 means 'far from'.