Correct Answer: care for

Solution : The correct choice is the second option .

The word tend as a verb means to care for, attend to, or look after. Thus, the synonym care for involves providing attention, support, or maintenance, making it the most suitable synonym for the word tend .

The meanings of the other options are as follows:

• Leave out means to exclude or omit something.
• Pick-up means to lift or collect.
• Send away implies causing something or someone to depart or be dismissed.