Which of the following is true? a debit cards often have a higher interest rate than credit cards. b checks are the most widely accepted form of payment c checks and debit cards both withdraw money directly from a bank account. d debit cards offer the highest level of fraud protection.

The answer is D. Because the PIN is the security feature, and no one else would know it unless you have shared that information (not advised).

The answer is a i believe

Some connecting rods have to lubricate the cylinder wall or piston pin. the answer is letter d. graphite coating can be a major  additive to many  coating  systems and things such as connecting rods.  it functions as a refractory, lubricant, thermal conductor, and electrical conductor for a machine or thing to enhance its work.