3. Which of the following is an invalid if-else statement? a. if(a)o b. if ((char) a)o c. if (func1 a) 0 d. if (if (a==1))0 Question 14 Not yet answered Marked out of 1 P. Flag question 9. Which of the following statement about for loop is true? a. Goto can be used to jump,out of the loop b All of these c. Index value is retained outside the loop d. Indexvalue can be changed from within the loop

For the first question, the correct answer is:<br /><br />d. if (if $(a==1))0$<br /><br />Explanation: This option is an invalid if-else statement because it contains a syntax error. The correct syntax for an if-else statement in most programming languages is "if (condition) { // code block } else { // code block }". Option d contains an extra "if" keyword and is not properly formatted.<br /><br />For the second question, the correct answer is:<br /><br />d. Index value can be changed from within the loop<br /><br />Explanation: The statement "Index value can be changed from within the loop" is true about for loops. In a for loop, the index value can be modified within the loop's body, allowing for iterative control over a range of values.