The correct answer is C. earn enough.
To make both ends meet means to have enough money to cover all of your expenses. If someone cannot make both ends meet, it means that they are not earning enough money to cover their expenses.
Option A, manage the business, is
41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube